Home / 3,127.66-4,316.70-1,801.12

Finding the Fourth Proportional to 3,127.66, 4,316.70 and 1,801.12

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Solution

The fourth proportional to 3,127.66, 4,316.70 and 1,801.12 is: 2,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.66 : 4,316.70 = 1,801.12 : x
  2. Step 2: Convert to fraction form
    3,127.66/4,316.70 = 1,801.12/x
  3. Step 3: Cross multiply
    3,127.66x = 4,316.70 × 1,801.12
  4. Step 4: Simplify right side
    3,127.66x = 7,774,894.70
  5. Step 5: Solve for x
    x = 7,774,894.70/3,127.66
  6. Step 6: Final answer
    x = 2,485.85

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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.