Home / 5,228.19-7,215.08-2,870.46

Finding the Fourth Proportional to 5,228.19, 7,215.08 and 2,870.46

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Solution

The fourth proportional to 5,228.19, 7,215.08 and 2,870.46 is: 3,961.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.19 : 7,215.08 = 2,870.46 : x
  2. Step 2: Convert to fraction form
    5,228.19/7,215.08 = 2,870.46/x
  3. Step 3: Cross multiply
    5,228.19x = 7,215.08 × 2,870.46
  4. Step 4: Simplify right side
    5,228.19x = 20,710,584.18
  5. Step 5: Solve for x
    x = 20,710,584.18/5,228.19
  6. Step 6: Final answer
    x = 3,961.33

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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.