Home / 2,400.09-3,311.85-1,352.15

Finding the Fourth Proportional to 2,400.09, 3,311.85 and 1,352.15

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Solution

The fourth proportional to 2,400.09, 3,311.85 and 1,352.15 is: 1,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.09 : 3,311.85 = 1,352.15 : x
  2. Step 2: Convert to fraction form
    2,400.09/3,311.85 = 1,352.15/x
  3. Step 3: Cross multiply
    2,400.09x = 3,311.85 × 1,352.15
  4. Step 4: Simplify right side
    2,400.09x = 4,478,117.98
  5. Step 5: Solve for x
    x = 4,478,117.98/2,400.09
  6. Step 6: Final answer
    x = 1,865.81

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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.