Home / 2,445.12-3,373.68-1,396.96

Finding the Fourth Proportional to 2,445.12, 3,373.68 and 1,396.96

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Solution

The fourth proportional to 2,445.12, 3,373.68 and 1,396.96 is: 1,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.12 : 3,373.68 = 1,396.96 : x
  2. Step 2: Convert to fraction form
    2,445.12/3,373.68 = 1,396.96/x
  3. Step 3: Cross multiply
    2,445.12x = 3,373.68 × 1,396.96
  4. Step 4: Simplify right side
    2,445.12x = 4,712,896.01
  5. Step 5: Solve for x
    x = 4,712,896.01/2,445.12
  6. Step 6: Final answer
    x = 1,927.47

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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.