Home / 5,698.13-7,863.40-3,180.09

Finding the Fourth Proportional to 5,698.13, 7,863.40 and 3,180.09

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Solution

The fourth proportional to 5,698.13, 7,863.40 and 3,180.09 is: 4,388.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,698.13 : 7,863.40 = 3,180.09 : x
  2. Step 2: Convert to fraction form
    5,698.13/7,863.40 = 3,180.09/x
  3. Step 3: Cross multiply
    5,698.13x = 7,863.40 × 3,180.09
  4. Step 4: Simplify right side
    5,698.13x = 25,006,319.71
  5. Step 5: Solve for x
    x = 25,006,319.71/5,698.13
  6. Step 6: Final answer
    x = 4,388.51

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1.5x scale

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.