Home / 2,871.78-4,305.51-1,410.18

Finding the Fourth Proportional to 2,871.78, 4,305.51 and 1,410.18

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Solution

The fourth proportional to 2,871.78, 4,305.51 and 1,410.18 is: 2,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.78 : 4,305.51 = 1,410.18 : x
  2. Step 2: Convert to fraction form
    2,871.78/4,305.51 = 1,410.18/x
  3. Step 3: Cross multiply
    2,871.78x = 4,305.51 × 1,410.18
  4. Step 4: Simplify right side
    2,871.78x = 6,071,544.09
  5. Step 5: Solve for x
    x = 6,071,544.09/2,871.78
  6. Step 6: Final answer
    x = 2,114.21

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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.