Home / 3,115.02-4,298.79-1,995.06

Finding the Fourth Proportional to 3,115.02, 4,298.79 and 1,995.06

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Solution

The fourth proportional to 3,115.02, 4,298.79 and 1,995.06 is: 2,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.02 : 4,298.79 = 1,995.06 : x
  2. Step 2: Convert to fraction form
    3,115.02/4,298.79 = 1,995.06/x
  3. Step 3: Cross multiply
    3,115.02x = 4,298.79 × 1,995.06
  4. Step 4: Simplify right side
    3,115.02x = 8,576,343.98
  5. Step 5: Solve for x
    x = 8,576,343.98/3,115.02
  6. Step 6: Final answer
    x = 2,753.22

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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.