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Finding the Fourth Proportional to 3,258.70, 4,497.15 and 2,079.70

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Solution

The fourth proportional to 3,258.70, 4,497.15 and 2,079.70 is: 2,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258.70 : 4,497.15 = 2,079.70 : x
  2. Step 2: Convert to fraction form
    3,258.70/4,497.15 = 2,079.70/x
  3. Step 3: Cross multiply
    3,258.70x = 4,497.15 × 2,079.70
  4. Step 4: Simplify right side
    3,258.70x = 9,352,722.86
  5. Step 5: Solve for x
    x = 9,352,722.86/3,258.70
  6. Step 6: Final answer
    x = 2,870.08

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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.