Home / 1,340.05-2,001.45-1,155.52

Finding the Fourth Proportional to 1,340.05, 2,001.45 and 1,155.52

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Solution

The fourth proportional to 1,340.05, 2,001.45 and 1,155.52 is: 1,725.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340.05 : 2,001.45 = 1,155.52 : x
  2. Step 2: Convert to fraction form
    1,340.05/2,001.45 = 1,155.52/x
  3. Step 3: Cross multiply
    1,340.05x = 2,001.45 × 1,155.52
  4. Step 4: Simplify right side
    1,340.05x = 2,312,715.62
  5. Step 5: Solve for x
    x = 2,312,715.62/1,340.05
  6. Step 6: Final answer
    x = 1,725.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.