Home / 5,228.18-7,214.67-2,870.37

Finding the Fourth Proportional to 5,228.18, 7,214.67 and 2,870.37

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Solution

The fourth proportional to 5,228.18, 7,214.67 and 2,870.37 is: 3,960.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.18 : 7,214.67 = 2,870.37 : x
  2. Step 2: Convert to fraction form
    5,228.18/7,214.67 = 2,870.37/x
  3. Step 3: Cross multiply
    5,228.18x = 7,214.67 × 2,870.37
  4. Step 4: Simplify right side
    5,228.18x = 20,708,772.33
  5. Step 5: Solve for x
    x = 20,708,772.33/5,228.18
  6. Step 6: Final answer
    x = 3,960.99

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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.