Home / 1,668.04-2,497.20-1,205.80

Finding the Fourth Proportional to 1,668.04, 2,497.20 and 1,205.80

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Solution

The fourth proportional to 1,668.04, 2,497.20 and 1,205.80 is: 1,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.04 : 2,497.20 = 1,205.80 : x
  2. Step 2: Convert to fraction form
    1,668.04/2,497.20 = 1,205.80/x
  3. Step 3: Cross multiply
    1,668.04x = 2,497.20 × 1,205.80
  4. Step 4: Simplify right side
    1,668.04x = 3,011,123.76
  5. Step 5: Solve for x
    x = 3,011,123.76/1,668.04
  6. Step 6: Final answer
    x = 1,805.19

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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.