Home / 1,668.93-2,488.68-1,555.85

Finding the Fourth Proportional to 1,668.93, 2,488.68 and 1,555.85

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Solution

The fourth proportional to 1,668.93, 2,488.68 and 1,555.85 is: 2,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668.93 : 2,488.68 = 1,555.85 : x
  2. Step 2: Convert to fraction form
    1,668.93/2,488.68 = 1,555.85/x
  3. Step 3: Cross multiply
    1,668.93x = 2,488.68 × 1,555.85
  4. Step 4: Simplify right side
    1,668.93x = 3,872,000.33
  5. Step 5: Solve for x
    x = 3,872,000.33/1,668.93
  6. Step 6: Final answer
    x = 2,320.05

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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.