Home / 1,521.01-2,281.18-425.08

Finding the Fourth Proportional to 1,521.01, 2,281.18 and 425.08

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Solution

The fourth proportional to 1,521.01, 2,281.18 and 425.08 is: 637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.01 : 2,281.18 = 425.08 : x
  2. Step 2: Convert to fraction form
    1,521.01/2,281.18 = 425.08/x
  3. Step 3: Cross multiply
    1,521.01x = 2,281.18 × 425.08
  4. Step 4: Simplify right side
    1,521.01x = 969,683.99
  5. Step 5: Solve for x
    x = 969,683.99/1,521.01
  6. Step 6: Final answer
    x = 637.53

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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.