Home / 2,391.12-3,299.76-1,343.22

Finding the Fourth Proportional to 2,391.12, 3,299.76 and 1,343.22

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Solution

The fourth proportional to 2,391.12, 3,299.76 and 1,343.22 is: 1,853.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.12 : 3,299.76 = 1,343.22 : x
  2. Step 2: Convert to fraction form
    2,391.12/3,299.76 = 1,343.22/x
  3. Step 3: Cross multiply
    2,391.12x = 3,299.76 × 1,343.22
  4. Step 4: Simplify right side
    2,391.12x = 4,432,303.63
  5. Step 5: Solve for x
    x = 4,432,303.63/2,391.12
  6. Step 6: Final answer
    x = 1,853.65

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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.