Home / 1,680.72-2,518.92-1,637.70

Finding the Fourth Proportional to 1,680.72, 2,518.92 and 1,637.70

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Solution

The fourth proportional to 1,680.72, 2,518.92 and 1,637.70 is: 2,454.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.72 : 2,518.92 = 1,637.70 : x
  2. Step 2: Convert to fraction form
    1,680.72/2,518.92 = 1,637.70/x
  3. Step 3: Cross multiply
    1,680.72x = 2,518.92 × 1,637.70
  4. Step 4: Simplify right side
    1,680.72x = 4,125,235.28
  5. Step 5: Solve for x
    x = 4,125,235.28/1,680.72
  6. Step 6: Final answer
    x = 2,454.45

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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.