Home / 5,218.75-7,859.39-4,752.19

Finding the Fourth Proportional to 5,218.75, 7,859.39 and 4,752.19

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Solution

The fourth proportional to 5,218.75, 7,859.39 and 4,752.19 is: 7,156.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.75 : 7,859.39 = 4,752.19 : x
  2. Step 2: Convert to fraction form
    5,218.75/7,859.39 = 4,752.19/x
  3. Step 3: Cross multiply
    5,218.75x = 7,859.39 × 4,752.19
  4. Step 4: Simplify right side
    5,218.75x = 37,349,290.80
  5. Step 5: Solve for x
    x = 37,349,290.80/5,218.75
  6. Step 6: Final answer
    x = 7,156.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.