Home / 5,155.49-7,726.35-2,685.13

Finding the Fourth Proportional to 5,155.49, 7,726.35 and 2,685.13

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Solution

The fourth proportional to 5,155.49, 7,726.35 and 2,685.13 is: 4,024.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.49 : 7,726.35 = 2,685.13 : x
  2. Step 2: Convert to fraction form
    5,155.49/7,726.35 = 2,685.13/x
  3. Step 3: Cross multiply
    5,155.49x = 7,726.35 × 2,685.13
  4. Step 4: Simplify right side
    5,155.49x = 20,746,254.18
  5. Step 5: Solve for x
    x = 20,746,254.18/5,155.49
  6. Step 6: Final answer
    x = 4,024.11

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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.