Home / 1,087.80-1,631.68-601.16

Finding the Fourth Proportional to 1,087.80, 1,631.68 and 601.16

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Solution

The fourth proportional to 1,087.80, 1,631.68 and 601.16 is: 901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087.80 : 1,631.68 = 601.16 : x
  2. Step 2: Convert to fraction form
    1,087.80/1,631.68 = 601.16/x
  3. Step 3: Cross multiply
    1,087.80x = 1,631.68 × 601.16
  4. Step 4: Simplify right side
    1,087.80x = 980,900.75
  5. Step 5: Solve for x
    x = 980,900.75/1,087.80
  6. Step 6: Final answer
    x = 901.73

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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.