Home / 2,281.11-3,421.76-637.53

Finding the Fourth Proportional to 2,281.11, 3,421.76 and 637.53

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Solution

The fourth proportional to 2,281.11, 3,421.76 and 637.53 is: 956.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.11 : 3,421.76 = 637.53 : x
  2. Step 2: Convert to fraction form
    2,281.11/3,421.76 = 637.53/x
  3. Step 3: Cross multiply
    2,281.11x = 3,421.76 × 637.53
  4. Step 4: Simplify right side
    2,281.11x = 2,181,471.47
  5. Step 5: Solve for x
    x = 2,181,471.47/2,281.11
  6. Step 6: Final answer
    x = 956.32

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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.