Home / 1,487.59-2,236.44-1,215.65

Finding the Fourth Proportional to 1,487.59, 2,236.44 and 1,215.65

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Solution

The fourth proportional to 1,487.59, 2,236.44 and 1,215.65 is: 1,827.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.59 : 2,236.44 = 1,215.65 : x
  2. Step 2: Convert to fraction form
    1,487.59/2,236.44 = 1,215.65/x
  3. Step 3: Cross multiply
    1,487.59x = 2,236.44 × 1,215.65
  4. Step 4: Simplify right side
    1,487.59x = 2,718,738.44
  5. Step 5: Solve for x
    x = 2,718,738.44/1,487.59
  6. Step 6: Final answer
    x = 1,827.62

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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.