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Finding the Fourth Proportional to 4,290.64, 5,921.12 and 2,522.32

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Solution

The fourth proportional to 4,290.64, 5,921.12 and 2,522.32 is: 3,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.64 : 5,921.12 = 2,522.32 : x
  2. Step 2: Convert to fraction form
    4,290.64/5,921.12 = 2,522.32/x
  3. Step 3: Cross multiply
    4,290.64x = 5,921.12 × 2,522.32
  4. Step 4: Simplify right side
    4,290.64x = 14,934,959.40
  5. Step 5: Solve for x
    x = 14,934,959.40/4,290.64
  6. Step 6: Final answer
    x = 3,480.82

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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.