Home / 3,721.16-5,580.84-1,124.30

Finding the Fourth Proportional to 3,721.16, 5,580.84 and 1,124.30

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Solution

The fourth proportional to 3,721.16, 5,580.84 and 1,124.30 is: 1,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.16 : 5,580.84 = 1,124.30 : x
  2. Step 2: Convert to fraction form
    3,721.16/5,580.84 = 1,124.30/x
  3. Step 3: Cross multiply
    3,721.16x = 5,580.84 × 1,124.30
  4. Step 4: Simplify right side
    3,721.16x = 6,274,538.41
  5. Step 5: Solve for x
    x = 6,274,538.41/3,721.16
  6. Step 6: Final answer
    x = 1,686.18

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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.