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Finding the Fourth Proportional to 6,347.49, 8,760.09 and 3,515.52

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Solution

The fourth proportional to 6,347.49, 8,760.09 and 3,515.52 is: 4,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,347.49 : 8,760.09 = 3,515.52 : x
  2. Step 2: Convert to fraction form
    6,347.49/8,760.09 = 3,515.52/x
  3. Step 3: Cross multiply
    6,347.49x = 8,760.09 × 3,515.52
  4. Step 4: Simplify right side
    6,347.49x = 30,796,271.60
  5. Step 5: Solve for x
    x = 30,796,271.60/6,347.49
  6. Step 6: Final answer
    x = 4,851.72

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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.