Home / 4,122.80-5,683-3,124.08

Finding the Fourth Proportional to 4,122.80, 5,683 and 3,124.08

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Solution

The fourth proportional to 4,122.80, 5,683 and 3,124.08 is: 4,306.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.80 : 5,683 = 3,124.08 : x
  2. Step 2: Convert to fraction form
    4,122.80/5,683 = 3,124.08/x
  3. Step 3: Cross multiply
    4,122.80x = 5,683 × 3,124.08
  4. Step 4: Simplify right side
    4,122.80x = 17,754,146.64
  5. Step 5: Solve for x
    x = 17,754,146.64/4,122.80
  6. Step 6: Final answer
    x = 4,306.33

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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.