Home / 7,160.48-10,742.20-2,777.92

Finding the Fourth Proportional to 7,160.48, 10,742.20 and 2,777.92

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Solution

The fourth proportional to 7,160.48, 10,742.20 and 2,777.92 is: 4,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.48 : 10,742.20 = 2,777.92 : x
  2. Step 2: Convert to fraction form
    7,160.48/10,742.20 = 2,777.92/x
  3. Step 3: Cross multiply
    7,160.48x = 10,742.20 × 2,777.92
  4. Step 4: Simplify right side
    7,160.48x = 29,840,972.22
  5. Step 5: Solve for x
    x = 29,840,972.22/7,160.48
  6. Step 6: Final answer
    x = 4,167.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.