Home / 4,612.91-6,915.76-2,147.40

Finding the Fourth Proportional to 4,612.91, 6,915.76 and 2,147.40

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Solution

The fourth proportional to 4,612.91, 6,915.76 and 2,147.40 is: 3,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,612.91 : 6,915.76 = 2,147.40 : x
  2. Step 2: Convert to fraction form
    4,612.91/6,915.76 = 2,147.40/x
  3. Step 3: Cross multiply
    4,612.91x = 6,915.76 × 2,147.40
  4. Step 4: Simplify right side
    4,612.91x = 14,850,903.02
  5. Step 5: Solve for x
    x = 14,850,903.02/4,612.91
  6. Step 6: Final answer
    x = 3,219.42

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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.