Home / 4,780.95-7,171.87-1,859.48

Finding the Fourth Proportional to 4,780.95, 7,171.87 and 1,859.48

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Solution

The fourth proportional to 4,780.95, 7,171.87 and 1,859.48 is: 2,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.95 : 7,171.87 = 1,859.48 : x
  2. Step 2: Convert to fraction form
    4,780.95/7,171.87 = 1,859.48/x
  3. Step 3: Cross multiply
    4,780.95x = 7,171.87 × 1,859.48
  4. Step 4: Simplify right side
    4,780.95x = 13,335,908.32
  5. Step 5: Solve for x
    x = 13,335,908.32/4,780.95
  6. Step 6: Final answer
    x = 2,789.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.