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Finding the Fourth Proportional to 2,760.32, 3,809.04 and 1,827.20

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Solution

The fourth proportional to 2,760.32, 3,809.04 and 1,827.20 is: 2,521.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.32 : 3,809.04 = 1,827.20 : x
  2. Step 2: Convert to fraction form
    2,760.32/3,809.04 = 1,827.20/x
  3. Step 3: Cross multiply
    2,760.32x = 3,809.04 × 1,827.20
  4. Step 4: Simplify right side
    2,760.32x = 6,959,877.89
  5. Step 5: Solve for x
    x = 6,959,877.89/2,760.32
  6. Step 6: Final answer
    x = 2,521.40

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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.