Home / 5,039.95-6,955.08-2,801.78

Finding the Fourth Proportional to 5,039.95, 6,955.08 and 2,801.78

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Solution

The fourth proportional to 5,039.95, 6,955.08 and 2,801.78 is: 3,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.95 : 6,955.08 = 2,801.78 : x
  2. Step 2: Convert to fraction form
    5,039.95/6,955.08 = 2,801.78/x
  3. Step 3: Cross multiply
    5,039.95x = 6,955.08 × 2,801.78
  4. Step 4: Simplify right side
    5,039.95x = 19,486,604.04
  5. Step 5: Solve for x
    x = 19,486,604.04/5,039.95
  6. Step 6: Final answer
    x = 3,866.43

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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.