Home / 5,228.13-7,214.84-2,870.43

Finding the Fourth Proportional to 5,228.13, 7,214.84 and 2,870.43

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Solution

The fourth proportional to 5,228.13, 7,214.84 and 2,870.43 is: 3,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.13 : 7,214.84 = 2,870.43 : x
  2. Step 2: Convert to fraction form
    5,228.13/7,214.84 = 2,870.43/x
  3. Step 3: Cross multiply
    5,228.13x = 7,214.84 × 2,870.43
  4. Step 4: Simplify right side
    5,228.13x = 20,709,693.18
  5. Step 5: Solve for x
    x = 20,709,693.18/5,228.13
  6. Step 6: Final answer
    x = 3,961.20

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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.