Home / 7,152.60-9,871.26-4,168.20

Finding the Fourth Proportional to 7,152.60, 9,871.26 and 4,168.20

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Solution

The fourth proportional to 7,152.60, 9,871.26 and 4,168.20 is: 5,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,152.60 : 9,871.26 = 4,168.20 : x
  2. Step 2: Convert to fraction form
    7,152.60/9,871.26 = 4,168.20/x
  3. Step 3: Cross multiply
    7,152.60x = 9,871.26 × 4,168.20
  4. Step 4: Simplify right side
    7,152.60x = 41,145,385.93
  5. Step 5: Solve for x
    x = 41,145,385.93/7,152.60
  6. Step 6: Final answer
    x = 5,752.51

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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.