Home / 2,516.51-3,470.65-1,620.40

Finding the Fourth Proportional to 2,516.51, 3,470.65 and 1,620.40

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Solution

The fourth proportional to 2,516.51, 3,470.65 and 1,620.40 is: 2,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,516.51 : 3,470.65 = 1,620.40 : x
  2. Step 2: Convert to fraction form
    2,516.51/3,470.65 = 1,620.40/x
  3. Step 3: Cross multiply
    2,516.51x = 3,470.65 × 1,620.40
  4. Step 4: Simplify right side
    2,516.51x = 5,623,841.26
  5. Step 5: Solve for x
    x = 5,623,841.26/2,516.51
  6. Step 6: Final answer
    x = 2,234.78

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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.