Home / 4,915.32-6,784.02-3,146.88

Finding the Fourth Proportional to 4,915.32, 6,784.02 and 3,146.88

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Solution

The fourth proportional to 4,915.32, 6,784.02 and 3,146.88 is: 4,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.32 : 6,784.02 = 3,146.88 : x
  2. Step 2: Convert to fraction form
    4,915.32/6,784.02 = 3,146.88/x
  3. Step 3: Cross multiply
    4,915.32x = 6,784.02 × 3,146.88
  4. Step 4: Simplify right side
    4,915.32x = 21,348,496.86
  5. Step 5: Solve for x
    x = 21,348,496.86/4,915.32
  6. Step 6: Final answer
    x = 4,343.26

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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.