Home / 4,427.80-6,637.14-1,963.78

Finding the Fourth Proportional to 4,427.80, 6,637.14 and 1,963.78

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Solution

The fourth proportional to 4,427.80, 6,637.14 and 1,963.78 is: 2,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.80 : 6,637.14 = 1,963.78 : x
  2. Step 2: Convert to fraction form
    4,427.80/6,637.14 = 1,963.78/x
  3. Step 3: Cross multiply
    4,427.80x = 6,637.14 × 1,963.78
  4. Step 4: Simplify right side
    4,427.80x = 13,033,898.45
  5. Step 5: Solve for x
    x = 13,033,898.45/4,427.80
  6. Step 6: Final answer
    x = 2,943.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.