Home / 2,319.72-3,487.11-1,862.51

Finding the Fourth Proportional to 2,319.72, 3,487.11 and 1,862.51

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Solution

The fourth proportional to 2,319.72, 3,487.11 and 1,862.51 is: 2,799.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.72 : 3,487.11 = 1,862.51 : x
  2. Step 2: Convert to fraction form
    2,319.72/3,487.11 = 1,862.51/x
  3. Step 3: Cross multiply
    2,319.72x = 3,487.11 × 1,862.51
  4. Step 4: Simplify right side
    2,319.72x = 6,494,759.81
  5. Step 5: Solve for x
    x = 6,494,759.81/2,319.72
  6. Step 6: Final answer
    x = 2,799.80

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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.