Home / 1,036.12-1,553.65-305.60

Finding the Fourth Proportional to 1,036.12, 1,553.65 and 305.60

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Solution

The fourth proportional to 1,036.12, 1,553.65 and 305.60 is: 458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.12 : 1,553.65 = 305.60 : x
  2. Step 2: Convert to fraction form
    1,036.12/1,553.65 = 305.60/x
  3. Step 3: Cross multiply
    1,036.12x = 1,553.65 × 305.60
  4. Step 4: Simplify right side
    1,036.12x = 474,793.91
  5. Step 5: Solve for x
    x = 474,793.91/1,036.12
  6. Step 6: Final answer
    x = 458.24

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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.