Home / 2,930.11-4,372.45-2,668.19

Finding the Fourth Proportional to 2,930.11, 4,372.45 and 2,668.19

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Solution

The fourth proportional to 2,930.11, 4,372.45 and 2,668.19 is: 3,981.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.11 : 4,372.45 = 2,668.19 : x
  2. Step 2: Convert to fraction form
    2,930.11/4,372.45 = 2,668.19/x
  3. Step 3: Cross multiply
    2,930.11x = 4,372.45 × 2,668.19
  4. Step 4: Simplify right side
    2,930.11x = 11,666,498.83
  5. Step 5: Solve for x
    x = 11,666,498.83/2,930.11
  6. Step 6: Final answer
    x = 3,981.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.