Home / 5,036.78-6,949.70-2,798.20

Finding the Fourth Proportional to 5,036.78, 6,949.70 and 2,798.20

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Solution

The fourth proportional to 5,036.78, 6,949.70 and 2,798.20 is: 3,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,036.78 : 6,949.70 = 2,798.20 : x
  2. Step 2: Convert to fraction form
    5,036.78/6,949.70 = 2,798.20/x
  3. Step 3: Cross multiply
    5,036.78x = 6,949.70 × 2,798.20
  4. Step 4: Simplify right side
    5,036.78x = 19,446,616.64
  5. Step 5: Solve for x
    x = 19,446,616.64/5,036.78
  6. Step 6: Final answer
    x = 3,860.92

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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.