Home / 2,915.13-4,371.21-1,065.77

Finding the Fourth Proportional to 2,915.13, 4,371.21 and 1,065.77

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Solution

The fourth proportional to 2,915.13, 4,371.21 and 1,065.77 is: 1,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.13 : 4,371.21 = 1,065.77 : x
  2. Step 2: Convert to fraction form
    2,915.13/4,371.21 = 1,065.77/x
  3. Step 3: Cross multiply
    2,915.13x = 4,371.21 × 1,065.77
  4. Step 4: Simplify right side
    2,915.13x = 4,658,704.48
  5. Step 5: Solve for x
    x = 4,658,704.48/2,915.13
  6. Step 6: Final answer
    x = 1,598.11

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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.