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Finding the Fourth Proportional to 1,658.03, 2,288.14 and 912.02

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Solution

The fourth proportional to 1,658.03, 2,288.14 and 912.02 is: 1,258.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.03 : 2,288.14 = 912.02 : x
  2. Step 2: Convert to fraction form
    1,658.03/2,288.14 = 912.02/x
  3. Step 3: Cross multiply
    1,658.03x = 2,288.14 × 912.02
  4. Step 4: Simplify right side
    1,658.03x = 2,086,819.16
  5. Step 5: Solve for x
    x = 2,086,819.16/1,658.03
  6. Step 6: Final answer
    x = 1,258.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.