Home / 2,569.17-3,860.10-1,645.13

Finding the Fourth Proportional to 2,569.17, 3,860.10 and 1,645.13

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Solution

The fourth proportional to 2,569.17, 3,860.10 and 1,645.13 is: 2,471.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.17 : 3,860.10 = 1,645.13 : x
  2. Step 2: Convert to fraction form
    2,569.17/3,860.10 = 1,645.13/x
  3. Step 3: Cross multiply
    2,569.17x = 3,860.10 × 1,645.13
  4. Step 4: Simplify right side
    2,569.17x = 6,350,358.09
  5. Step 5: Solve for x
    x = 6,350,358.09/2,569.17
  6. Step 6: Final answer
    x = 2,471.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.