Home / 2,214.06-3,321.10-915.57

Finding the Fourth Proportional to 2,214.06, 3,321.10 and 915.57

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Solution

The fourth proportional to 2,214.06, 3,321.10 and 915.57 is: 1,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,214.06 : 3,321.10 = 915.57 : x
  2. Step 2: Convert to fraction form
    2,214.06/3,321.10 = 915.57/x
  3. Step 3: Cross multiply
    2,214.06x = 3,321.10 × 915.57
  4. Step 4: Simplify right side
    2,214.06x = 3,040,699.53
  5. Step 5: Solve for x
    x = 3,040,699.53/2,214.06
  6. Step 6: Final answer
    x = 1,373.36

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1.5x scale

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.