Home / 5,902.80-8,147.92-3,666.40

Finding the Fourth Proportional to 5,902.80, 8,147.92 and 3,666.40

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Solution

The fourth proportional to 5,902.80, 8,147.92 and 3,666.40 is: 5,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,902.80 : 8,147.92 = 3,666.40 : x
  2. Step 2: Convert to fraction form
    5,902.80/8,147.92 = 3,666.40/x
  3. Step 3: Cross multiply
    5,902.80x = 8,147.92 × 3,666.40
  4. Step 4: Simplify right side
    5,902.80x = 29,873,533.89
  5. Step 5: Solve for x
    x = 29,873,533.89/5,902.80
  6. Step 6: Final answer
    x = 5,060.91

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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.