Home / 3,077.37-4,246.76-1,680.12

Finding the Fourth Proportional to 3,077.37, 4,246.76 and 1,680.12

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Solution

The fourth proportional to 3,077.37, 4,246.76 and 1,680.12 is: 2,318.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.37 : 4,246.76 = 1,680.12 : x
  2. Step 2: Convert to fraction form
    3,077.37/4,246.76 = 1,680.12/x
  3. Step 3: Cross multiply
    3,077.37x = 4,246.76 × 1,680.12
  4. Step 4: Simplify right side
    3,077.37x = 7,135,070.61
  5. Step 5: Solve for x
    x = 7,135,070.61/3,077.37
  6. Step 6: Final answer
    x = 2,318.56

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,078.37, 4,248.14 and 1,681.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.