Home / 1,088.38-1,631.62-471.97

Finding the Fourth Proportional to 1,088.38, 1,631.62 and 471.97

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Solution

The fourth proportional to 1,088.38, 1,631.62 and 471.97 is: 707.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.38 : 1,631.62 = 471.97 : x
  2. Step 2: Convert to fraction form
    1,088.38/1,631.62 = 471.97/x
  3. Step 3: Cross multiply
    1,088.38x = 1,631.62 × 471.97
  4. Step 4: Simplify right side
    1,088.38x = 770,075.69
  5. Step 5: Solve for x
    x = 770,075.69/1,088.38
  6. Step 6: Final answer
    x = 707.54

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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.