Home / 5,719.51-7,890.60-3,479.59

Finding the Fourth Proportional to 5,719.51, 7,890.60 and 3,479.59

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Solution

The fourth proportional to 5,719.51, 7,890.60 and 3,479.59 is: 4,800.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.51 : 7,890.60 = 3,479.59 : x
  2. Step 2: Convert to fraction form
    5,719.51/7,890.60 = 3,479.59/x
  3. Step 3: Cross multiply
    5,719.51x = 7,890.60 × 3,479.59
  4. Step 4: Simplify right side
    5,719.51x = 27,456,033.13
  5. Step 5: Solve for x
    x = 27,456,033.13/5,719.51
  6. Step 6: Final answer
    x = 4,800.42

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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.