Home / 5,707.80-7,872.48-4,291.92

Finding the Fourth Proportional to 5,707.80, 7,872.48 and 4,291.92

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Solution

The fourth proportional to 5,707.80, 7,872.48 and 4,291.92 is: 5,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.80 : 7,872.48 = 4,291.92 : x
  2. Step 2: Convert to fraction form
    5,707.80/7,872.48 = 4,291.92/x
  3. Step 3: Cross multiply
    5,707.80x = 7,872.48 × 4,291.92
  4. Step 4: Simplify right side
    5,707.80x = 33,788,054.36
  5. Step 5: Solve for x
    x = 33,788,054.36/5,707.80
  6. Step 6: Final answer
    x = 5,919.63

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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.