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Finding the Fourth Proportional to 2,920.59, 4,381.92 and 1,823.69

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Solution

The fourth proportional to 2,920.59, 4,381.92 and 1,823.69 is: 2,736.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.59 : 4,381.92 = 1,823.69 : x
  2. Step 2: Convert to fraction form
    2,920.59/4,381.92 = 1,823.69/x
  3. Step 3: Cross multiply
    2,920.59x = 4,381.92 × 1,823.69
  4. Step 4: Simplify right side
    2,920.59x = 7,991,263.68
  5. Step 5: Solve for x
    x = 7,991,263.68/2,920.59
  6. Step 6: Final answer
    x = 2,736.18

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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.