Home / 3,478.02-5,213.46-1,256.16

Finding the Fourth Proportional to 3,478.02, 5,213.46 and 1,256.16

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Solution

The fourth proportional to 3,478.02, 5,213.46 and 1,256.16 is: 1,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.02 : 5,213.46 = 1,256.16 : x
  2. Step 2: Convert to fraction form
    3,478.02/5,213.46 = 1,256.16/x
  3. Step 3: Cross multiply
    3,478.02x = 5,213.46 × 1,256.16
  4. Step 4: Simplify right side
    3,478.02x = 6,548,939.91
  5. Step 5: Solve for x
    x = 6,548,939.91/3,478.02
  6. Step 6: Final answer
    x = 1,882.95

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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.