Home / 3,077.35-4,246.68-1,680.10

Finding the Fourth Proportional to 3,077.35, 4,246.68 and 1,680.10

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Solution

The fourth proportional to 3,077.35, 4,246.68 and 1,680.10 is: 2,318.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.35 : 4,246.68 = 1,680.10 : x
  2. Step 2: Convert to fraction form
    3,077.35/4,246.68 = 1,680.10/x
  3. Step 3: Cross multiply
    3,077.35x = 4,246.68 × 1,680.10
  4. Step 4: Simplify right side
    3,077.35x = 7,134,847.07
  5. Step 5: Solve for x
    x = 7,134,847.07/3,077.35
  6. Step 6: Final answer
    x = 2,318.50

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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.