Home / 3,258.28-4,887.15-918.10

Finding the Fourth Proportional to 3,258.28, 4,887.15 and 918.10

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Solution

The fourth proportional to 3,258.28, 4,887.15 and 918.10 is: 1,377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.28 : 4,887.15 = 918.10 : x
  2. Step 2: Convert to fraction form
    3,258.28/4,887.15 = 918.10/x
  3. Step 3: Cross multiply
    3,258.28x = 4,887.15 × 918.10
  4. Step 4: Simplify right side
    3,258.28x = 4,486,892.42
  5. Step 5: Solve for x
    x = 4,486,892.42/3,258.28
  6. Step 6: Final answer
    x = 1,377.07

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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.