Home / 1,255.65-1,732.98-1,045.53

Finding the Fourth Proportional to 1,255.65, 1,732.98 and 1,045.53

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Solution

The fourth proportional to 1,255.65, 1,732.98 and 1,045.53 is: 1,442.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.65 : 1,732.98 = 1,045.53 : x
  2. Step 2: Convert to fraction form
    1,255.65/1,732.98 = 1,045.53/x
  3. Step 3: Cross multiply
    1,255.65x = 1,732.98 × 1,045.53
  4. Step 4: Simplify right side
    1,255.65x = 1,811,882.58
  5. Step 5: Solve for x
    x = 1,811,882.58/1,255.65
  6. Step 6: Final answer
    x = 1,442.98

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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.