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Finding the Fourth Proportional to 2,528.64, 3,489.54 and 1,480.71

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Solution

The fourth proportional to 2,528.64, 3,489.54 and 1,480.71 is: 2,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.64 : 3,489.54 = 1,480.71 : x
  2. Step 2: Convert to fraction form
    2,528.64/3,489.54 = 1,480.71/x
  3. Step 3: Cross multiply
    2,528.64x = 3,489.54 × 1,480.71
  4. Step 4: Simplify right side
    2,528.64x = 5,166,996.77
  5. Step 5: Solve for x
    x = 5,166,996.77/2,528.64
  6. Step 6: Final answer
    x = 2,043.39

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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.