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Finding the Fourth Proportional to 6,111.78, 8,426.04 and 4,857

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Solution

The fourth proportional to 6,111.78, 8,426.04 and 4,857 is: 6,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,111.78 : 8,426.04 = 4,857 : x
  2. Step 2: Convert to fraction form
    6,111.78/8,426.04 = 4,857/x
  3. Step 3: Cross multiply
    6,111.78x = 8,426.04 × 4,857
  4. Step 4: Simplify right side
    6,111.78x = 40,925,276.28
  5. Step 5: Solve for x
    x = 40,925,276.28/6,111.78
  6. Step 6: Final answer
    x = 6,696.13

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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.