Home / 1,053.30-1,579.95-437.43

Finding the Fourth Proportional to 1,053.30, 1,579.95 and 437.43

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Solution

The fourth proportional to 1,053.30, 1,579.95 and 437.43 is: 656.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.30 : 1,579.95 = 437.43 : x
  2. Step 2: Convert to fraction form
    1,053.30/1,579.95 = 437.43/x
  3. Step 3: Cross multiply
    1,053.30x = 1,579.95 × 437.43
  4. Step 4: Simplify right side
    1,053.30x = 691,117.53
  5. Step 5: Solve for x
    x = 691,117.53/1,053.30
  6. Step 6: Final answer
    x = 656.15

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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.