Home / 3,141.54-4,709.16-1,387.26

Finding the Fourth Proportional to 3,141.54, 4,709.16 and 1,387.26

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Solution

The fourth proportional to 3,141.54, 4,709.16 and 1,387.26 is: 2,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.54 : 4,709.16 = 1,387.26 : x
  2. Step 2: Convert to fraction form
    3,141.54/4,709.16 = 1,387.26/x
  3. Step 3: Cross multiply
    3,141.54x = 4,709.16 × 1,387.26
  4. Step 4: Simplify right side
    3,141.54x = 6,532,829.30
  5. Step 5: Solve for x
    x = 6,532,829.30/3,141.54
  6. Step 6: Final answer
    x = 2,079.50

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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.