Home / 2,630.28-3,942-1,068.46

Finding the Fourth Proportional to 2,630.28, 3,942 and 1,068.46

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Solution

The fourth proportional to 2,630.28, 3,942 and 1,068.46 is: 1,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.28 : 3,942 = 1,068.46 : x
  2. Step 2: Convert to fraction form
    2,630.28/3,942 = 1,068.46/x
  3. Step 3: Cross multiply
    2,630.28x = 3,942 × 1,068.46
  4. Step 4: Simplify right side
    2,630.28x = 4,211,869.32
  5. Step 5: Solve for x
    x = 4,211,869.32/2,630.28
  6. Step 6: Final answer
    x = 1,601.30

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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.