Home / 3,215.69-4,825.08-2,800.01

Finding the Fourth Proportional to 3,215.69, 4,825.08 and 2,800.01

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Solution

The fourth proportional to 3,215.69, 4,825.08 and 2,800.01 is: 4,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.69 : 4,825.08 = 2,800.01 : x
  2. Step 2: Convert to fraction form
    3,215.69/4,825.08 = 2,800.01/x
  3. Step 3: Cross multiply
    3,215.69x = 4,825.08 × 2,800.01
  4. Step 4: Simplify right side
    3,215.69x = 13,510,248.13
  5. Step 5: Solve for x
    x = 13,510,248.13/3,215.69
  6. Step 6: Final answer
    x = 4,201.36

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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.