Home / 1,157.32-1,736.69-609.90

Finding the Fourth Proportional to 1,157.32, 1,736.69 and 609.90

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Solution

The fourth proportional to 1,157.32, 1,736.69 and 609.90 is: 915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.32 : 1,736.69 = 609.90 : x
  2. Step 2: Convert to fraction form
    1,157.32/1,736.69 = 609.90/x
  3. Step 3: Cross multiply
    1,157.32x = 1,736.69 × 609.90
  4. Step 4: Simplify right side
    1,157.32x = 1,059,207.23
  5. Step 5: Solve for x
    x = 1,059,207.23/1,157.32
  6. Step 6: Final answer
    x = 915.22

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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.