Home / 2,465.16-3,400.79-1,520.65

Finding the Fourth Proportional to 2,465.16, 3,400.79 and 1,520.65

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Solution

The fourth proportional to 2,465.16, 3,400.79 and 1,520.65 is: 2,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,465.16 : 3,400.79 = 1,520.65 : x
  2. Step 2: Convert to fraction form
    2,465.16/3,400.79 = 1,520.65/x
  3. Step 3: Cross multiply
    2,465.16x = 3,400.79 × 1,520.65
  4. Step 4: Simplify right side
    2,465.16x = 5,171,398.40
  5. Step 5: Solve for x
    x = 5,171,398.40/2,465.16
  6. Step 6: Final answer
    x = 2,097.80

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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.