Home / 3,147.12-4,718.40-1,504.80

Finding the Fourth Proportional to 3,147.12, 4,718.40 and 1,504.80

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Solution

The fourth proportional to 3,147.12, 4,718.40 and 1,504.80 is: 2,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.12 : 4,718.40 = 1,504.80 : x
  2. Step 2: Convert to fraction form
    3,147.12/4,718.40 = 1,504.80/x
  3. Step 3: Cross multiply
    3,147.12x = 4,718.40 × 1,504.80
  4. Step 4: Simplify right side
    3,147.12x = 7,100,248.32
  5. Step 5: Solve for x
    x = 7,100,248.32/3,147.12
  6. Step 6: Final answer
    x = 2,256.11

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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.