Home / 3,131.52-4,698.96-1,487.04

Finding the Fourth Proportional to 3,131.52, 4,698.96 and 1,487.04

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Solution

The fourth proportional to 3,131.52, 4,698.96 and 1,487.04 is: 2,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.52 : 4,698.96 = 1,487.04 : x
  2. Step 2: Convert to fraction form
    3,131.52/4,698.96 = 1,487.04/x
  3. Step 3: Cross multiply
    3,131.52x = 4,698.96 × 1,487.04
  4. Step 4: Simplify right side
    3,131.52x = 6,987,541.48
  5. Step 5: Solve for x
    x = 6,987,541.48/3,131.52
  6. Step 6: Final answer
    x = 2,231.36

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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.