Home / 5,486.16-8,229.92-1,787.40

Finding the Fourth Proportional to 5,486.16, 8,229.92 and 1,787.40

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Solution

The fourth proportional to 5,486.16, 8,229.92 and 1,787.40 is: 2,681.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.16 : 8,229.92 = 1,787.40 : x
  2. Step 2: Convert to fraction form
    5,486.16/8,229.92 = 1,787.40/x
  3. Step 3: Cross multiply
    5,486.16x = 8,229.92 × 1,787.40
  4. Step 4: Simplify right side
    5,486.16x = 14,710,150.07
  5. Step 5: Solve for x
    x = 14,710,150.07/5,486.16
  6. Step 6: Final answer
    x = 2,681.32

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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.