Home / 2,312.74-3,469.63-1,079.48

Finding the Fourth Proportional to 2,312.74, 3,469.63 and 1,079.48

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Solution

The fourth proportional to 2,312.74, 3,469.63 and 1,079.48 is: 1,619.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.74 : 3,469.63 = 1,079.48 : x
  2. Step 2: Convert to fraction form
    2,312.74/3,469.63 = 1,079.48/x
  3. Step 3: Cross multiply
    2,312.74x = 3,469.63 × 1,079.48
  4. Step 4: Simplify right side
    2,312.74x = 3,745,387.13
  5. Step 5: Solve for x
    x = 3,745,387.13/2,312.74
  6. Step 6: Final answer
    x = 1,619.46

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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.