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Finding the Fourth Proportional to 6,031.40, 8,320.50 and 3,760.88

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Solution

The fourth proportional to 6,031.40, 8,320.50 and 3,760.88 is: 5,188.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,031.40 : 8,320.50 = 3,760.88 : x
  2. Step 2: Convert to fraction form
    6,031.40/8,320.50 = 3,760.88/x
  3. Step 3: Cross multiply
    6,031.40x = 8,320.50 × 3,760.88
  4. Step 4: Simplify right side
    6,031.40x = 31,292,360.44
  5. Step 5: Solve for x
    x = 31,292,360.44/6,031.40
  6. Step 6: Final answer
    x = 5,188.25

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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.