Home / 5,458.80-8,177.40-3,709.20

Finding the Fourth Proportional to 5,458.80, 8,177.40 and 3,709.20

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Solution

The fourth proportional to 5,458.80, 8,177.40 and 3,709.20 is: 5,556.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.80 : 8,177.40 = 3,709.20 : x
  2. Step 2: Convert to fraction form
    5,458.80/8,177.40 = 3,709.20/x
  3. Step 3: Cross multiply
    5,458.80x = 8,177.40 × 3,709.20
  4. Step 4: Simplify right side
    5,458.80x = 30,331,612.08
  5. Step 5: Solve for x
    x = 30,331,612.08/5,458.80
  6. Step 6: Final answer
    x = 5,556.46

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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.