Home / 2,864.21-4,294.22-915.29

Finding the Fourth Proportional to 2,864.21, 4,294.22 and 915.29

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Solution

The fourth proportional to 2,864.21, 4,294.22 and 915.29 is: 1,372.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.21 : 4,294.22 = 915.29 : x
  2. Step 2: Convert to fraction form
    2,864.21/4,294.22 = 915.29/x
  3. Step 3: Cross multiply
    2,864.21x = 4,294.22 × 915.29
  4. Step 4: Simplify right side
    2,864.21x = 3,930,452.05
  5. Step 5: Solve for x
    x = 3,930,452.05/2,864.21
  6. Step 6: Final answer
    x = 1,372.26

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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.