Home / 3,934.98-5,430.04-2,166.24

Finding the Fourth Proportional to 3,934.98, 5,430.04 and 2,166.24

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Solution

The fourth proportional to 3,934.98, 5,430.04 and 2,166.24 is: 2,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.98 : 5,430.04 = 2,166.24 : x
  2. Step 2: Convert to fraction form
    3,934.98/5,430.04 = 2,166.24/x
  3. Step 3: Cross multiply
    3,934.98x = 5,430.04 × 2,166.24
  4. Step 4: Simplify right side
    3,934.98x = 11,762,769.85
  5. Step 5: Solve for x
    x = 11,762,769.85/3,934.98
  6. Step 6: Final answer
    x = 2,989.28

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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.