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Finding the Fourth Proportional to 1,258.85, 1,887.03 and 610.04

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Solution

The fourth proportional to 1,258.85, 1,887.03 and 610.04 is: 914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.85 : 1,887.03 = 610.04 : x
  2. Step 2: Convert to fraction form
    1,258.85/1,887.03 = 610.04/x
  3. Step 3: Cross multiply
    1,258.85x = 1,887.03 × 610.04
  4. Step 4: Simplify right side
    1,258.85x = 1,151,154.35
  5. Step 5: Solve for x
    x = 1,151,154.35/1,258.85
  6. Step 6: Final answer
    x = 914.45

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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.