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Finding the Fourth Proportional to 4,513.88, 6,721.49 and 4,347.80

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Solution

The fourth proportional to 4,513.88, 6,721.49 and 4,347.80 is: 6,474.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,513.88 : 6,721.49 = 4,347.80 : x
  2. Step 2: Convert to fraction form
    4,513.88/6,721.49 = 4,347.80/x
  3. Step 3: Cross multiply
    4,513.88x = 6,721.49 × 4,347.80
  4. Step 4: Simplify right side
    4,513.88x = 29,223,721.71
  5. Step 5: Solve for x
    x = 29,223,721.71/4,513.88
  6. Step 6: Final answer
    x = 6,474.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.