Home / 6,629.76-9,148.80-3,977.52

Finding the Fourth Proportional to 6,629.76, 9,148.80 and 3,977.52

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Solution

The fourth proportional to 6,629.76, 9,148.80 and 3,977.52 is: 5,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.76 : 9,148.80 = 3,977.52 : x
  2. Step 2: Convert to fraction form
    6,629.76/9,148.80 = 3,977.52/x
  3. Step 3: Cross multiply
    6,629.76x = 9,148.80 × 3,977.52
  4. Step 4: Simplify right side
    6,629.76x = 36,389,534.98
  5. Step 5: Solve for x
    x = 36,389,534.98/6,629.76
  6. Step 6: Final answer
    x = 5,488.82

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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.