Home / 2,278.02-3,140.46-1,719.12

Finding the Fourth Proportional to 2,278.02, 3,140.46 and 1,719.12

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Solution

The fourth proportional to 2,278.02, 3,140.46 and 1,719.12 is: 2,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.02 : 3,140.46 = 1,719.12 : x
  2. Step 2: Convert to fraction form
    2,278.02/3,140.46 = 1,719.12/x
  3. Step 3: Cross multiply
    2,278.02x = 3,140.46 × 1,719.12
  4. Step 4: Simplify right side
    2,278.02x = 5,398,827.60
  5. Step 5: Solve for x
    x = 5,398,827.60/2,278.02
  6. Step 6: Final answer
    x = 2,369.96

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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.