Home / 1,042.03-1,437.40-649.18

Finding the Fourth Proportional to 1,042.03, 1,437.40 and 649.18

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Solution

The fourth proportional to 1,042.03, 1,437.40 and 649.18 is: 895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042.03 : 1,437.40 = 649.18 : x
  2. Step 2: Convert to fraction form
    1,042.03/1,437.40 = 649.18/x
  3. Step 3: Cross multiply
    1,042.03x = 1,437.40 × 649.18
  4. Step 4: Simplify right side
    1,042.03x = 933,130.29
  5. Step 5: Solve for x
    x = 933,130.29/1,042.03
  6. Step 6: Final answer
    x = 895.49

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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.