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Finding the Fourth Proportional to 6,243.57, 8,616.12 and 3,590.91

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Solution

The fourth proportional to 6,243.57, 8,616.12 and 3,590.91 is: 4,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.57 : 8,616.12 = 3,590.91 : x
  2. Step 2: Convert to fraction form
    6,243.57/8,616.12 = 3,590.91/x
  3. Step 3: Cross multiply
    6,243.57x = 8,616.12 × 3,590.91
  4. Step 4: Simplify right side
    6,243.57x = 30,939,711.47
  5. Step 5: Solve for x
    x = 30,939,711.47/6,243.57
  6. Step 6: Final answer
    x = 4,955.45

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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.