Home / 3,120.24-4,672.36-2,077.12

Finding the Fourth Proportional to 3,120.24, 4,672.36 and 2,077.12

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Solution

The fourth proportional to 3,120.24, 4,672.36 and 2,077.12 is: 3,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.24 : 4,672.36 = 2,077.12 : x
  2. Step 2: Convert to fraction form
    3,120.24/4,672.36 = 2,077.12/x
  3. Step 3: Cross multiply
    3,120.24x = 4,672.36 × 2,077.12
  4. Step 4: Simplify right side
    3,120.24x = 9,705,052.40
  5. Step 5: Solve for x
    x = 9,705,052.40/3,120.24
  6. Step 6: Final answer
    x = 3,110.35

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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.