Home / 1,039.30-1,434.13-573.52

Finding the Fourth Proportional to 1,039.30, 1,434.13 and 573.52

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Solution

The fourth proportional to 1,039.30, 1,434.13 and 573.52 is: 791.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.30 : 1,434.13 = 573.52 : x
  2. Step 2: Convert to fraction form
    1,039.30/1,434.13 = 573.52/x
  3. Step 3: Cross multiply
    1,039.30x = 1,434.13 × 573.52
  4. Step 4: Simplify right side
    1,039.30x = 822,492.20
  5. Step 5: Solve for x
    x = 822,492.20/1,039.30
  6. Step 6: Final answer
    x = 791.39

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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.