Home / 2,891.04-4,343.69-1,851.49

Finding the Fourth Proportional to 2,891.04, 4,343.69 and 1,851.49

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Solution

The fourth proportional to 2,891.04, 4,343.69 and 1,851.49 is: 2,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.04 : 4,343.69 = 1,851.49 : x
  2. Step 2: Convert to fraction form
    2,891.04/4,343.69 = 1,851.49/x
  3. Step 3: Cross multiply
    2,891.04x = 4,343.69 × 1,851.49
  4. Step 4: Simplify right side
    2,891.04x = 8,042,298.60
  5. Step 5: Solve for x
    x = 8,042,298.60/2,891.04
  6. Step 6: Final answer
    x = 2,781.80

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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.