Home / 3,757.80-5,637.14-1,125.45

Finding the Fourth Proportional to 3,757.80, 5,637.14 and 1,125.45

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Solution

The fourth proportional to 3,757.80, 5,637.14 and 1,125.45 is: 1,688.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,757.80 : 5,637.14 = 1,125.45 : x
  2. Step 2: Convert to fraction form
    3,757.80/5,637.14 = 1,125.45/x
  3. Step 3: Cross multiply
    3,757.80x = 5,637.14 × 1,125.45
  4. Step 4: Simplify right side
    3,757.80x = 6,344,313.59
  5. Step 5: Solve for x
    x = 6,344,313.59/3,757.80
  6. Step 6: Final answer
    x = 1,688.31

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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.