Home / 3,181.02-4,391.40-2,298.90

Finding the Fourth Proportional to 3,181.02, 4,391.40 and 2,298.90

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Solution

The fourth proportional to 3,181.02, 4,391.40 and 2,298.90 is: 3,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.02 : 4,391.40 = 2,298.90 : x
  2. Step 2: Convert to fraction form
    3,181.02/4,391.40 = 2,298.90/x
  3. Step 3: Cross multiply
    3,181.02x = 4,391.40 × 2,298.90
  4. Step 4: Simplify right side
    3,181.02x = 10,095,389.46
  5. Step 5: Solve for x
    x = 10,095,389.46/3,181.02
  6. Step 6: Final answer
    x = 3,173.63

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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.