Home / 3,149.30-4,343.99-1,968.32

Finding the Fourth Proportional to 3,149.30, 4,343.99 and 1,968.32

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Solution

The fourth proportional to 3,149.30, 4,343.99 and 1,968.32 is: 2,715.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.30 : 4,343.99 = 1,968.32 : x
  2. Step 2: Convert to fraction form
    3,149.30/4,343.99 = 1,968.32/x
  3. Step 3: Cross multiply
    3,149.30x = 4,343.99 × 1,968.32
  4. Step 4: Simplify right side
    3,149.30x = 8,550,363.42
  5. Step 5: Solve for x
    x = 8,550,363.42/3,149.30
  6. Step 6: Final answer
    x = 2,715.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.