Home / 1,088.03-1,631.34-394.57

Finding the Fourth Proportional to 1,088.03, 1,631.34 and 394.57

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Solution

The fourth proportional to 1,088.03, 1,631.34 and 394.57 is: 591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.03 : 1,631.34 = 394.57 : x
  2. Step 2: Convert to fraction form
    1,088.03/1,631.34 = 394.57/x
  3. Step 3: Cross multiply
    1,088.03x = 1,631.34 × 394.57
  4. Step 4: Simplify right side
    1,088.03x = 643,679.86
  5. Step 5: Solve for x
    x = 643,679.86/1,088.03
  6. Step 6: Final answer
    x = 591.60

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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.