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Finding the Fourth Proportional to 2,693.76, 4,019.52 and 2,528.64

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Solution

The fourth proportional to 2,693.76, 4,019.52 and 2,528.64 is: 3,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.76 : 4,019.52 = 2,528.64 : x
  2. Step 2: Convert to fraction form
    2,693.76/4,019.52 = 2,528.64/x
  3. Step 3: Cross multiply
    2,693.76x = 4,019.52 × 2,528.64
  4. Step 4: Simplify right side
    2,693.76x = 10,163,919.05
  5. Step 5: Solve for x
    x = 10,163,919.05/2,693.76
  6. Step 6: Final answer
    x = 3,773.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.