Home / 7,154.75-9,871.20-4,638.83

Finding the Fourth Proportional to 7,154.75, 9,871.20 and 4,638.83

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Solution

The fourth proportional to 7,154.75, 9,871.20 and 4,638.83 is: 6,400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.75 : 9,871.20 = 4,638.83 : x
  2. Step 2: Convert to fraction form
    7,154.75/9,871.20 = 4,638.83/x
  3. Step 3: Cross multiply
    7,154.75x = 9,871.20 × 4,638.83
  4. Step 4: Simplify right side
    7,154.75x = 45,790,818.70
  5. Step 5: Solve for x
    x = 45,790,818.70/7,154.75
  6. Step 6: Final answer
    x = 6,400.06

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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.