Home / 5,915.65-8,871.84-2,217.61

Finding the Fourth Proportional to 5,915.65, 8,871.84 and 2,217.61

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Solution

The fourth proportional to 5,915.65, 8,871.84 and 2,217.61 is: 3,325.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.65 : 8,871.84 = 2,217.61 : x
  2. Step 2: Convert to fraction form
    5,915.65/8,871.84 = 2,217.61/x
  3. Step 3: Cross multiply
    5,915.65x = 8,871.84 × 2,217.61
  4. Step 4: Simplify right side
    5,915.65x = 19,674,281.10
  5. Step 5: Solve for x
    x = 19,674,281.10/5,915.65
  6. Step 6: Final answer
    x = 3,325.80

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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.