Home / 5,122.40-7,681.80-2,350.40

Finding the Fourth Proportional to 5,122.40, 7,681.80 and 2,350.40

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Solution

The fourth proportional to 5,122.40, 7,681.80 and 2,350.40 is: 3,524.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.40 : 7,681.80 = 2,350.40 : x
  2. Step 2: Convert to fraction form
    5,122.40/7,681.80 = 2,350.40/x
  3. Step 3: Cross multiply
    5,122.40x = 7,681.80 × 2,350.40
  4. Step 4: Simplify right side
    5,122.40x = 18,055,302.72
  5. Step 5: Solve for x
    x = 18,055,302.72/5,122.40
  6. Step 6: Final answer
    x = 3,524.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.