Home / 3,910.40-5,395.06-2,397.40

Finding the Fourth Proportional to 3,910.40, 5,395.06 and 2,397.40

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Solution

The fourth proportional to 3,910.40, 5,395.06 and 2,397.40 is: 3,307.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.40 : 5,395.06 = 2,397.40 : x
  2. Step 2: Convert to fraction form
    3,910.40/5,395.06 = 2,397.40/x
  3. Step 3: Cross multiply
    3,910.40x = 5,395.06 × 2,397.40
  4. Step 4: Simplify right side
    3,910.40x = 12,934,116.84
  5. Step 5: Solve for x
    x = 12,934,116.84/3,910.40
  6. Step 6: Final answer
    x = 3,307.62

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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.