Home / 7,121.29-10,675.07-4,781.93

Finding the Fourth Proportional to 7,121.29, 10,675.07 and 4,781.93

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Solution

The fourth proportional to 7,121.29, 10,675.07 and 4,781.93 is: 7,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.29 : 10,675.07 = 4,781.93 : x
  2. Step 2: Convert to fraction form
    7,121.29/10,675.07 = 4,781.93/x
  3. Step 3: Cross multiply
    7,121.29x = 10,675.07 × 4,781.93
  4. Step 4: Simplify right side
    7,121.29x = 51,047,437.49
  5. Step 5: Solve for x
    x = 51,047,437.49/7,121.29
  6. Step 6: Final answer
    x = 7,168.29

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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.