Home / 2,399.25-3,312.08-1,691.67

Finding the Fourth Proportional to 2,399.25, 3,312.08 and 1,691.67

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Solution

The fourth proportional to 2,399.25, 3,312.08 and 1,691.67 is: 2,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.25 : 3,312.08 = 1,691.67 : x
  2. Step 2: Convert to fraction form
    2,399.25/3,312.08 = 1,691.67/x
  3. Step 3: Cross multiply
    2,399.25x = 3,312.08 × 1,691.67
  4. Step 4: Simplify right side
    2,399.25x = 5,602,937.92
  5. Step 5: Solve for x
    x = 5,602,937.92/2,399.25
  6. Step 6: Final answer
    x = 2,335.29

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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.