Home / 1,827.36-2,734.88-1,278.24

Finding the Fourth Proportional to 1,827.36, 2,734.88 and 1,278.24

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Solution

The fourth proportional to 1,827.36, 2,734.88 and 1,278.24 is: 1,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,827.36 : 2,734.88 = 1,278.24 : x
  2. Step 2: Convert to fraction form
    1,827.36/2,734.88 = 1,278.24/x
  3. Step 3: Cross multiply
    1,827.36x = 2,734.88 × 1,278.24
  4. Step 4: Simplify right side
    1,827.36x = 3,495,833.01
  5. Step 5: Solve for x
    x = 3,495,833.01/1,827.36
  6. Step 6: Final answer
    x = 1,913.05

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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.