Home / 1,088.90-1,629.70-1,074.32

Finding the Fourth Proportional to 1,088.90, 1,629.70 and 1,074.32

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Solution

The fourth proportional to 1,088.90, 1,629.70 and 1,074.32 is: 1,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.90 : 1,629.70 = 1,074.32 : x
  2. Step 2: Convert to fraction form
    1,088.90/1,629.70 = 1,074.32/x
  3. Step 3: Cross multiply
    1,088.90x = 1,629.70 × 1,074.32
  4. Step 4: Simplify right side
    1,088.90x = 1,750,819.30
  5. Step 5: Solve for x
    x = 1,750,819.30/1,088.90
  6. Step 6: Final answer
    x = 1,607.88

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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.