Home / 4,885-6,741.38-3,490.12

Finding the Fourth Proportional to 4,885, 6,741.38 and 3,490.12

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Solution

The fourth proportional to 4,885, 6,741.38 and 3,490.12 is: 4,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885 : 6,741.38 = 3,490.12 : x
  2. Step 2: Convert to fraction form
    4,885/6,741.38 = 3,490.12/x
  3. Step 3: Cross multiply
    4,885x = 6,741.38 × 3,490.12
  4. Step 4: Simplify right side
    4,885x = 23,528,225.17
  5. Step 5: Solve for x
    x = 23,528,225.17/4,885
  6. Step 6: Final answer
    x = 4,816.42

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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.