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Finding the Fourth Proportional to 2,258.64, 3,387.76 and 797.72

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Solution

The fourth proportional to 2,258.64, 3,387.76 and 797.72 is: 1,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,258.64 : 3,387.76 = 797.72 : x
  2. Step 2: Convert to fraction form
    2,258.64/3,387.76 = 797.72/x
  3. Step 3: Cross multiply
    2,258.64x = 3,387.76 × 797.72
  4. Step 4: Simplify right side
    2,258.64x = 2,702,483.91
  5. Step 5: Solve for x
    x = 2,702,483.91/2,258.64
  6. Step 6: Final answer
    x = 1,196.51

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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.