Home / 1,340.10-2,007.18-608.70

Finding the Fourth Proportional to 1,340.10, 2,007.18 and 608.70

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Solution

The fourth proportional to 1,340.10, 2,007.18 and 608.70 is: 911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.10 : 2,007.18 = 608.70 : x
  2. Step 2: Convert to fraction form
    1,340.10/2,007.18 = 608.70/x
  3. Step 3: Cross multiply
    1,340.10x = 2,007.18 × 608.70
  4. Step 4: Simplify right side
    1,340.10x = 1,221,770.47
  5. Step 5: Solve for x
    x = 1,221,770.47/1,340.10
  6. Step 6: Final answer
    x = 911.70

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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.