Home / 4,253.02-6,378.10-1,787.38

Finding the Fourth Proportional to 4,253.02, 6,378.10 and 1,787.38

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Solution

The fourth proportional to 4,253.02, 6,378.10 and 1,787.38 is: 2,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.02 : 6,378.10 = 1,787.38 : x
  2. Step 2: Convert to fraction form
    4,253.02/6,378.10 = 1,787.38/x
  3. Step 3: Cross multiply
    4,253.02x = 6,378.10 × 1,787.38
  4. Step 4: Simplify right side
    4,253.02x = 11,400,088.38
  5. Step 5: Solve for x
    x = 11,400,088.38/4,253.02
  6. Step 6: Final answer
    x = 2,680.47

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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.