Home / 2,398.18-3,311.29-2,359.91

Finding the Fourth Proportional to 2,398.18, 3,311.29 and 2,359.91

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Solution

The fourth proportional to 2,398.18, 3,311.29 and 2,359.91 is: 3,258.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.18 : 3,311.29 = 2,359.91 : x
  2. Step 2: Convert to fraction form
    2,398.18/3,311.29 = 2,359.91/x
  3. Step 3: Cross multiply
    2,398.18x = 3,311.29 × 2,359.91
  4. Step 4: Simplify right side
    2,398.18x = 7,814,346.38
  5. Step 5: Solve for x
    x = 7,814,346.38/2,398.18
  6. Step 6: Final answer
    x = 3,258.45

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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.