Home / 1,045.28-1,569.99-1,008.38

Finding the Fourth Proportional to 1,045.28, 1,569.99 and 1,008.38

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Solution

The fourth proportional to 1,045.28, 1,569.99 and 1,008.38 is: 1,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.28 : 1,569.99 = 1,008.38 : x
  2. Step 2: Convert to fraction form
    1,045.28/1,569.99 = 1,008.38/x
  3. Step 3: Cross multiply
    1,045.28x = 1,569.99 × 1,008.38
  4. Step 4: Simplify right side
    1,045.28x = 1,583,138.67
  5. Step 5: Solve for x
    x = 1,583,138.67/1,045.28
  6. Step 6: Final answer
    x = 1,514.57

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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.