Home / 3,747.90-5,621.31-1,557.12

Finding the Fourth Proportional to 3,747.90, 5,621.31 and 1,557.12

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Solution

The fourth proportional to 3,747.90, 5,621.31 and 1,557.12 is: 2,335.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.90 : 5,621.31 = 1,557.12 : x
  2. Step 2: Convert to fraction form
    3,747.90/5,621.31 = 1,557.12/x
  3. Step 3: Cross multiply
    3,747.90x = 5,621.31 × 1,557.12
  4. Step 4: Simplify right side
    3,747.90x = 8,753,054.23
  5. Step 5: Solve for x
    x = 8,753,054.23/3,747.90
  6. Step 6: Final answer
    x = 2,335.46

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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.