Home / 1,358.62-2,045.31-1,217.50

Finding the Fourth Proportional to 1,358.62, 2,045.31 and 1,217.50

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Solution

The fourth proportional to 1,358.62, 2,045.31 and 1,217.50 is: 1,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.62 : 2,045.31 = 1,217.50 : x
  2. Step 2: Convert to fraction form
    1,358.62/2,045.31 = 1,217.50/x
  3. Step 3: Cross multiply
    1,358.62x = 2,045.31 × 1,217.50
  4. Step 4: Simplify right side
    1,358.62x = 2,490,158.84
  5. Step 5: Solve for x
    x = 2,490,158.84/1,358.62
  6. Step 6: Final answer
    x = 1,832.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.