Home / 2,405.92-3,320.01-1,397.54

Finding the Fourth Proportional to 2,405.92, 3,320.01 and 1,397.54

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Solution

The fourth proportional to 2,405.92, 3,320.01 and 1,397.54 is: 1,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.92 : 3,320.01 = 1,397.54 : x
  2. Step 2: Convert to fraction form
    2,405.92/3,320.01 = 1,397.54/x
  3. Step 3: Cross multiply
    2,405.92x = 3,320.01 × 1,397.54
  4. Step 4: Simplify right side
    2,405.92x = 4,639,830.18
  5. Step 5: Solve for x
    x = 4,639,830.18/2,405.92
  6. Step 6: Final answer
    x = 1,928.51

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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.