Home / 2,439.28-3,361.80-1,775.08

Finding the Fourth Proportional to 2,439.28, 3,361.80 and 1,775.08

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Solution

The fourth proportional to 2,439.28, 3,361.80 and 1,775.08 is: 2,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.28 : 3,361.80 = 1,775.08 : x
  2. Step 2: Convert to fraction form
    2,439.28/3,361.80 = 1,775.08/x
  3. Step 3: Cross multiply
    2,439.28x = 3,361.80 × 1,775.08
  4. Step 4: Simplify right side
    2,439.28x = 5,967,463.94
  5. Step 5: Solve for x
    x = 5,967,463.94/2,439.28
  6. Step 6: Final answer
    x = 2,446.40

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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.