Home / 5,445.68-7,512.92-3,319.28

Finding the Fourth Proportional to 5,445.68, 7,512.92 and 3,319.28

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Solution

The fourth proportional to 5,445.68, 7,512.92 and 3,319.28 is: 4,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.68 : 7,512.92 = 3,319.28 : x
  2. Step 2: Convert to fraction form
    5,445.68/7,512.92 = 3,319.28/x
  3. Step 3: Cross multiply
    5,445.68x = 7,512.92 × 3,319.28
  4. Step 4: Simplify right side
    5,445.68x = 24,937,485.10
  5. Step 5: Solve for x
    x = 24,937,485.10/5,445.68
  6. Step 6: Final answer
    x = 4,579.32

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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.