Home / 5,777.60-8,666.40-2,079.95

Finding the Fourth Proportional to 5,777.60, 8,666.40 and 2,079.95

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Solution

The fourth proportional to 5,777.60, 8,666.40 and 2,079.95 is: 3,119.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.60 : 8,666.40 = 2,079.95 : x
  2. Step 2: Convert to fraction form
    5,777.60/8,666.40 = 2,079.95/x
  3. Step 3: Cross multiply
    5,777.60x = 8,666.40 × 2,079.95
  4. Step 4: Simplify right side
    5,777.60x = 18,025,678.68
  5. Step 5: Solve for x
    x = 18,025,678.68/5,777.60
  6. Step 6: Final answer
    x = 3,119.93

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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.