Home / 3,363.59-4,642.31-2,803.21

Finding the Fourth Proportional to 3,363.59, 4,642.31 and 2,803.21

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Solution

The fourth proportional to 3,363.59, 4,642.31 and 2,803.21 is: 3,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,363.59 : 4,642.31 = 2,803.21 : x
  2. Step 2: Convert to fraction form
    3,363.59/4,642.31 = 2,803.21/x
  3. Step 3: Cross multiply
    3,363.59x = 4,642.31 × 2,803.21
  4. Step 4: Simplify right side
    3,363.59x = 13,013,365.22
  5. Step 5: Solve for x
    x = 13,013,365.22/3,363.59
  6. Step 6: Final answer
    x = 3,868.89

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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.