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Finding the Fourth Proportional to 5,340.65, 8,011.22 and 3,787.61

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Solution

The fourth proportional to 5,340.65, 8,011.22 and 3,787.61 is: 5,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.65 : 8,011.22 = 3,787.61 : x
  2. Step 2: Convert to fraction form
    5,340.65/8,011.22 = 3,787.61/x
  3. Step 3: Cross multiply
    5,340.65x = 8,011.22 × 3,787.61
  4. Step 4: Simplify right side
    5,340.65x = 30,343,317.99
  5. Step 5: Solve for x
    x = 30,343,317.99/5,340.65
  6. Step 6: Final answer
    x = 5,681.58

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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.