Home / 5,915.32-8,162.84-3,395.68

Finding the Fourth Proportional to 5,915.32, 8,162.84 and 3,395.68

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Solution

The fourth proportional to 5,915.32, 8,162.84 and 3,395.68 is: 4,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.32 : 8,162.84 = 3,395.68 : x
  2. Step 2: Convert to fraction form
    5,915.32/8,162.84 = 3,395.68/x
  3. Step 3: Cross multiply
    5,915.32x = 8,162.84 × 3,395.68
  4. Step 4: Simplify right side
    5,915.32x = 27,718,392.53
  5. Step 5: Solve for x
    x = 27,718,392.53/5,915.32
  6. Step 6: Final answer
    x = 4,685.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.