Home / 3,711.15-5,120.01-2,385.59

Finding the Fourth Proportional to 3,711.15, 5,120.01 and 2,385.59

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Solution

The fourth proportional to 3,711.15, 5,120.01 and 2,385.59 is: 3,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,711.15 : 5,120.01 = 2,385.59 : x
  2. Step 2: Convert to fraction form
    3,711.15/5,120.01 = 2,385.59/x
  3. Step 3: Cross multiply
    3,711.15x = 5,120.01 × 2,385.59
  4. Step 4: Simplify right side
    3,711.15x = 12,214,219.06
  5. Step 5: Solve for x
    x = 12,214,219.06/3,711.15
  6. Step 6: Final answer
    x = 3,291.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.