Home / 4,915.41-6,785.87-3,239.63

Finding the Fourth Proportional to 4,915.41, 6,785.87 and 3,239.63

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Solution

The fourth proportional to 4,915.41, 6,785.87 and 3,239.63 is: 4,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.41 : 6,785.87 = 3,239.63 : x
  2. Step 2: Convert to fraction form
    4,915.41/6,785.87 = 3,239.63/x
  3. Step 3: Cross multiply
    4,915.41x = 6,785.87 × 3,239.63
  4. Step 4: Simplify right side
    4,915.41x = 21,983,657.90
  5. Step 5: Solve for x
    x = 21,983,657.90/4,915.41
  6. Step 6: Final answer
    x = 4,472.40

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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.