Home / 5,521.36-7,612.56-3,528.64

Finding the Fourth Proportional to 5,521.36, 7,612.56 and 3,528.64

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Solution

The fourth proportional to 5,521.36, 7,612.56 and 3,528.64 is: 4,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.36 : 7,612.56 = 3,528.64 : x
  2. Step 2: Convert to fraction form
    5,521.36/7,612.56 = 3,528.64/x
  3. Step 3: Cross multiply
    5,521.36x = 7,612.56 × 3,528.64
  4. Step 4: Simplify right side
    5,521.36x = 26,861,983.72
  5. Step 5: Solve for x
    x = 26,861,983.72/5,521.36
  6. Step 6: Final answer
    x = 4,865.10

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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.