Home / 5,915.16-8,160.30-4,146.12

Finding the Fourth Proportional to 5,915.16, 8,160.30 and 4,146.12

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Solution

The fourth proportional to 5,915.16, 8,160.30 and 4,146.12 is: 5,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.16 : 8,160.30 = 4,146.12 : x
  2. Step 2: Convert to fraction form
    5,915.16/8,160.30 = 4,146.12/x
  3. Step 3: Cross multiply
    5,915.16x = 8,160.30 × 4,146.12
  4. Step 4: Simplify right side
    5,915.16x = 33,833,583.04
  5. Step 5: Solve for x
    x = 33,833,583.04/5,915.16
  6. Step 6: Final answer
    x = 5,719.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.