Home / 5,169.88-7,130.34-3,654.76

Finding the Fourth Proportional to 5,169.88, 7,130.34 and 3,654.76

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Solution

The fourth proportional to 5,169.88, 7,130.34 and 3,654.76 is: 5,040.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.88 : 7,130.34 = 3,654.76 : x
  2. Step 2: Convert to fraction form
    5,169.88/7,130.34 = 3,654.76/x
  3. Step 3: Cross multiply
    5,169.88x = 7,130.34 × 3,654.76
  4. Step 4: Simplify right side
    5,169.88x = 26,059,681.42
  5. Step 5: Solve for x
    x = 26,059,681.42/5,169.88
  6. Step 6: Final answer
    x = 5,040.67

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Half scale
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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.