Home / 1,036.24-1,429.98-663.08

Finding the Fourth Proportional to 1,036.24, 1,429.98 and 663.08

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Solution

The fourth proportional to 1,036.24, 1,429.98 and 663.08 is: 915.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.24 : 1,429.98 = 663.08 : x
  2. Step 2: Convert to fraction form
    1,036.24/1,429.98 = 663.08/x
  3. Step 3: Cross multiply
    1,036.24x = 1,429.98 × 663.08
  4. Step 4: Simplify right side
    1,036.24x = 948,191.14
  5. Step 5: Solve for x
    x = 948,191.14/1,036.24
  6. Step 6: Final answer
    x = 915.03

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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.