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Finding the Fourth Proportional to 1,088.01, 1,632.25 and 394.51

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Solution

The fourth proportional to 1,088.01, 1,632.25 and 394.51 is: 591.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.01 : 1,632.25 = 394.51 : x
  2. Step 2: Convert to fraction form
    1,088.01/1,632.25 = 394.51/x
  3. Step 3: Cross multiply
    1,088.01x = 1,632.25 × 394.51
  4. Step 4: Simplify right side
    1,088.01x = 643,938.95
  5. Step 5: Solve for x
    x = 643,938.95/1,088.01
  6. Step 6: Final answer
    x = 591.85

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1.5x scale

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.