Home / 5,787.18-8,678.46-2,088.12

Finding the Fourth Proportional to 5,787.18, 8,678.46 and 2,088.12

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Solution

The fourth proportional to 5,787.18, 8,678.46 and 2,088.12 is: 3,131.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.18 : 8,678.46 = 2,088.12 : x
  2. Step 2: Convert to fraction form
    5,787.18/8,678.46 = 2,088.12/x
  3. Step 3: Cross multiply
    5,787.18x = 8,678.46 × 2,088.12
  4. Step 4: Simplify right side
    5,787.18x = 18,121,665.90
  5. Step 5: Solve for x
    x = 18,121,665.90/5,787.18
  6. Step 6: Final answer
    x = 3,131.35

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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.