Home / 7,135.78-9,844.09-4,618.70

Finding the Fourth Proportional to 7,135.78, 9,844.09 and 4,618.70

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Solution

The fourth proportional to 7,135.78, 9,844.09 and 4,618.70 is: 6,371.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.78 : 9,844.09 = 4,618.70 : x
  2. Step 2: Convert to fraction form
    7,135.78/9,844.09 = 4,618.70/x
  3. Step 3: Cross multiply
    7,135.78x = 9,844.09 × 4,618.70
  4. Step 4: Simplify right side
    7,135.78x = 45,466,895.95
  5. Step 5: Solve for x
    x = 45,466,895.95/7,135.78
  6. Step 6: Final answer
    x = 6,371.68

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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.