Home / 2,725.12-4,088.40-1,426.24

Finding the Fourth Proportional to 2,725.12, 4,088.40 and 1,426.24

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Solution

The fourth proportional to 2,725.12, 4,088.40 and 1,426.24 is: 2,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.12 : 4,088.40 = 1,426.24 : x
  2. Step 2: Convert to fraction form
    2,725.12/4,088.40 = 1,426.24/x
  3. Step 3: Cross multiply
    2,725.12x = 4,088.40 × 1,426.24
  4. Step 4: Simplify right side
    2,725.12x = 5,831,039.62
  5. Step 5: Solve for x
    x = 5,831,039.62/2,725.12
  6. Step 6: Final answer
    x = 2,139.74

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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.