Home / 1,088.08-1,630.50-438.46

Finding the Fourth Proportional to 1,088.08, 1,630.50 and 438.46

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Solution

The fourth proportional to 1,088.08, 1,630.50 and 438.46 is: 657.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.08 : 1,630.50 = 438.46 : x
  2. Step 2: Convert to fraction form
    1,088.08/1,630.50 = 438.46/x
  3. Step 3: Cross multiply
    1,088.08x = 1,630.50 × 438.46
  4. Step 4: Simplify right side
    1,088.08x = 714,909.03
  5. Step 5: Solve for x
    x = 714,909.03/1,088.08
  6. Step 6: Final answer
    x = 657.04

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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.