Home / 5,161.16-7,122.65-2,923.13

Finding the Fourth Proportional to 5,161.16, 7,122.65 and 2,923.13

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Solution

The fourth proportional to 5,161.16, 7,122.65 and 2,923.13 is: 4,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.16 : 7,122.65 = 2,923.13 : x
  2. Step 2: Convert to fraction form
    5,161.16/7,122.65 = 2,923.13/x
  3. Step 3: Cross multiply
    5,161.16x = 7,122.65 × 2,923.13
  4. Step 4: Simplify right side
    5,161.16x = 20,820,381.67
  5. Step 5: Solve for x
    x = 20,820,381.67/5,161.16
  6. Step 6: Final answer
    x = 4,034.05

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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.