Home / 3,775.80-5,208.02-2,281.12

Finding the Fourth Proportional to 3,775.80, 5,208.02 and 2,281.12

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Solution

The fourth proportional to 3,775.80, 5,208.02 and 2,281.12 is: 3,146.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.80 : 5,208.02 = 2,281.12 : x
  2. Step 2: Convert to fraction form
    3,775.80/5,208.02 = 2,281.12/x
  3. Step 3: Cross multiply
    3,775.80x = 5,208.02 × 2,281.12
  4. Step 4: Simplify right side
    3,775.80x = 11,880,118.58
  5. Step 5: Solve for x
    x = 11,880,118.58/3,775.80
  6. Step 6: Final answer
    x = 3,146.38

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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.