Home / 5,074.75-7,612.13-1,787.47

Finding the Fourth Proportional to 5,074.75, 7,612.13 and 1,787.47

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Solution

The fourth proportional to 5,074.75, 7,612.13 and 1,787.47 is: 2,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.75 : 7,612.13 = 1,787.47 : x
  2. Step 2: Convert to fraction form
    5,074.75/7,612.13 = 1,787.47/x
  3. Step 3: Cross multiply
    5,074.75x = 7,612.13 × 1,787.47
  4. Step 4: Simplify right side
    5,074.75x = 13,606,454.01
  5. Step 5: Solve for x
    x = 13,606,454.01/5,074.75
  6. Step 6: Final answer
    x = 2,681.21

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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.