Home / 1,342.17-2,009.55-1,012.11

Finding the Fourth Proportional to 1,342.17, 2,009.55 and 1,012.11

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Solution

The fourth proportional to 1,342.17, 2,009.55 and 1,012.11 is: 1,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,342.17 : 2,009.55 = 1,012.11 : x
  2. Step 2: Convert to fraction form
    1,342.17/2,009.55 = 1,012.11/x
  3. Step 3: Cross multiply
    1,342.17x = 2,009.55 × 1,012.11
  4. Step 4: Simplify right side
    1,342.17x = 2,033,885.65
  5. Step 5: Solve for x
    x = 2,033,885.65/1,342.17
  6. Step 6: Final answer
    x = 1,515.37

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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.