Home / 3,506.90-4,839.28-1,934.78

Finding the Fourth Proportional to 3,506.90, 4,839.28 and 1,934.78

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Solution

The fourth proportional to 3,506.90, 4,839.28 and 1,934.78 is: 2,669.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,506.90 : 4,839.28 = 1,934.78 : x
  2. Step 2: Convert to fraction form
    3,506.90/4,839.28 = 1,934.78/x
  3. Step 3: Cross multiply
    3,506.90x = 4,839.28 × 1,934.78
  4. Step 4: Simplify right side
    3,506.90x = 9,362,913.13
  5. Step 5: Solve for x
    x = 9,362,913.13/3,506.90
  6. Step 6: Final answer
    x = 2,669.86

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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.