Home / 1,045.18-1,566.14-784.76

Finding the Fourth Proportional to 1,045.18, 1,566.14 and 784.76

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Solution

The fourth proportional to 1,045.18, 1,566.14 and 784.76 is: 1,175.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.18 : 1,566.14 = 784.76 : x
  2. Step 2: Convert to fraction form
    1,045.18/1,566.14 = 784.76/x
  3. Step 3: Cross multiply
    1,045.18x = 1,566.14 × 784.76
  4. Step 4: Simplify right side
    1,045.18x = 1,229,044.03
  5. Step 5: Solve for x
    x = 1,229,044.03/1,045.18
  6. Step 6: Final answer
    x = 1,175.92

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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.