Home / 2,827.90-3,902.55-1,708.69

Finding the Fourth Proportional to 2,827.90, 3,902.55 and 1,708.69

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Solution

The fourth proportional to 2,827.90, 3,902.55 and 1,708.69 is: 2,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.90 : 3,902.55 = 1,708.69 : x
  2. Step 2: Convert to fraction form
    2,827.90/3,902.55 = 1,708.69/x
  3. Step 3: Cross multiply
    2,827.90x = 3,902.55 × 1,708.69
  4. Step 4: Simplify right side
    2,827.90x = 6,668,220.10
  5. Step 5: Solve for x
    x = 6,668,220.10/2,827.90
  6. Step 6: Final answer
    x = 2,358.01

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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.