Home / 2,391.16-3,299.74-1,328.92

Finding the Fourth Proportional to 2,391.16, 3,299.74 and 1,328.92

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Solution

The fourth proportional to 2,391.16, 3,299.74 and 1,328.92 is: 1,833.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.16 : 3,299.74 = 1,328.92 : x
  2. Step 2: Convert to fraction form
    2,391.16/3,299.74 = 1,328.92/x
  3. Step 3: Cross multiply
    2,391.16x = 3,299.74 × 1,328.92
  4. Step 4: Simplify right side
    2,391.16x = 4,385,090.48
  5. Step 5: Solve for x
    x = 4,385,090.48/2,391.16
  6. Step 6: Final answer
    x = 1,833.88

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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.