Home / 2,878.05-4,320.52-1,950.79

Finding the Fourth Proportional to 2,878.05, 4,320.52 and 1,950.79

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Solution

The fourth proportional to 2,878.05, 4,320.52 and 1,950.79 is: 2,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.05 : 4,320.52 = 1,950.79 : x
  2. Step 2: Convert to fraction form
    2,878.05/4,320.52 = 1,950.79/x
  3. Step 3: Cross multiply
    2,878.05x = 4,320.52 × 1,950.79
  4. Step 4: Simplify right side
    2,878.05x = 8,428,442.76
  5. Step 5: Solve for x
    x = 8,428,442.76/2,878.05
  6. Step 6: Final answer
    x = 2,928.53

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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.