Home / 5,177.98-7,765.88-1,668.30

Finding the Fourth Proportional to 5,177.98, 7,765.88 and 1,668.30

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Solution

The fourth proportional to 5,177.98, 7,765.88 and 1,668.30 is: 2,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.98 : 7,765.88 = 1,668.30 : x
  2. Step 2: Convert to fraction form
    5,177.98/7,765.88 = 1,668.30/x
  3. Step 3: Cross multiply
    5,177.98x = 7,765.88 × 1,668.30
  4. Step 4: Simplify right side
    5,177.98x = 12,955,817.60
  5. Step 5: Solve for x
    x = 12,955,817.60/5,177.98
  6. Step 6: Final answer
    x = 2,502.10

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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.