Home / 2,138.34-3,218.88-1,526.28

Finding the Fourth Proportional to 2,138.34, 3,218.88 and 1,526.28

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Solution

The fourth proportional to 2,138.34, 3,218.88 and 1,526.28 is: 2,297.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.34 : 3,218.88 = 1,526.28 : x
  2. Step 2: Convert to fraction form
    2,138.34/3,218.88 = 1,526.28/x
  3. Step 3: Cross multiply
    2,138.34x = 3,218.88 × 1,526.28
  4. Step 4: Simplify right side
    2,138.34x = 4,912,912.17
  5. Step 5: Solve for x
    x = 4,912,912.17/2,138.34
  6. Step 6: Final answer
    x = 2,297.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.