Home / 2,988.40-4,482.60-1,255.84

Finding the Fourth Proportional to 2,988.40, 4,482.60 and 1,255.84

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Solution

The fourth proportional to 2,988.40, 4,482.60 and 1,255.84 is: 1,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.40 : 4,482.60 = 1,255.84 : x
  2. Step 2: Convert to fraction form
    2,988.40/4,482.60 = 1,255.84/x
  3. Step 3: Cross multiply
    2,988.40x = 4,482.60 × 1,255.84
  4. Step 4: Simplify right side
    2,988.40x = 5,629,428.38
  5. Step 5: Solve for x
    x = 5,629,428.38/2,988.40
  6. Step 6: Final answer
    x = 1,883.76

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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.