Home / 1,472.45-2,031.90-1,122.53

Finding the Fourth Proportional to 1,472.45, 2,031.90 and 1,122.53

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Solution

The fourth proportional to 1,472.45, 2,031.90 and 1,122.53 is: 1,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.45 : 2,031.90 = 1,122.53 : x
  2. Step 2: Convert to fraction form
    1,472.45/2,031.90 = 1,122.53/x
  3. Step 3: Cross multiply
    1,472.45x = 2,031.90 × 1,122.53
  4. Step 4: Simplify right side
    1,472.45x = 2,280,868.71
  5. Step 5: Solve for x
    x = 2,280,868.71/1,472.45
  6. Step 6: Final answer
    x = 1,549.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.