Home / 2,472.93-3,419.20-2,161.68

Finding the Fourth Proportional to 2,472.93, 3,419.20 and 2,161.68

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Solution

The fourth proportional to 2,472.93, 3,419.20 and 2,161.68 is: 2,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.93 : 3,419.20 = 2,161.68 : x
  2. Step 2: Convert to fraction form
    2,472.93/3,419.20 = 2,161.68/x
  3. Step 3: Cross multiply
    2,472.93x = 3,419.20 × 2,161.68
  4. Step 4: Simplify right side
    2,472.93x = 7,391,216.26
  5. Step 5: Solve for x
    x = 7,391,216.26/2,472.93
  6. Step 6: Final answer
    x = 2,988.85

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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.