Home / 2,891.79-4,338.15-1,248.84

Finding the Fourth Proportional to 2,891.79, 4,338.15 and 1,248.84

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Solution

The fourth proportional to 2,891.79, 4,338.15 and 1,248.84 is: 1,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.79 : 4,338.15 = 1,248.84 : x
  2. Step 2: Convert to fraction form
    2,891.79/4,338.15 = 1,248.84/x
  3. Step 3: Cross multiply
    2,891.79x = 4,338.15 × 1,248.84
  4. Step 4: Simplify right side
    2,891.79x = 5,417,655.25
  5. Step 5: Solve for x
    x = 5,417,655.25/2,891.79
  6. Step 6: Final answer
    x = 1,873.46

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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.