Home / 1,126.02-1,689.27-346.13

Finding the Fourth Proportional to 1,126.02, 1,689.27 and 346.13

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Solution

The fourth proportional to 1,126.02, 1,689.27 and 346.13 is: 519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126.02 : 1,689.27 = 346.13 : x
  2. Step 2: Convert to fraction form
    1,126.02/1,689.27 = 346.13/x
  3. Step 3: Cross multiply
    1,126.02x = 1,689.27 × 346.13
  4. Step 4: Simplify right side
    1,126.02x = 584,707.03
  5. Step 5: Solve for x
    x = 584,707.03/1,126.02
  6. Step 6: Final answer
    x = 519.27

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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.