Home / 2,954.08-4,432.16-1,311.78

Finding the Fourth Proportional to 2,954.08, 4,432.16 and 1,311.78

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Solution

The fourth proportional to 2,954.08, 4,432.16 and 1,311.78 is: 1,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,954.08 : 4,432.16 = 1,311.78 : x
  2. Step 2: Convert to fraction form
    2,954.08/4,432.16 = 1,311.78/x
  3. Step 3: Cross multiply
    2,954.08x = 4,432.16 × 1,311.78
  4. Step 4: Simplify right side
    2,954.08x = 5,814,018.84
  5. Step 5: Solve for x
    x = 5,814,018.84/2,954.08
  6. Step 6: Final answer
    x = 1,968.13

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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.