Home / 1,680.48-2,508.04-1,636.80

Finding the Fourth Proportional to 1,680.48, 2,508.04 and 1,636.80

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Solution

The fourth proportional to 1,680.48, 2,508.04 and 1,636.80 is: 2,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680.48 : 2,508.04 = 1,636.80 : x
  2. Step 2: Convert to fraction form
    1,680.48/2,508.04 = 1,636.80/x
  3. Step 3: Cross multiply
    1,680.48x = 2,508.04 × 1,636.80
  4. Step 4: Simplify right side
    1,680.48x = 4,105,159.87
  5. Step 5: Solve for x
    x = 4,105,159.87/1,680.48
  6. Step 6: Final answer
    x = 2,442.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.