Home / 2,152.34-3,226.28-919.92

Finding the Fourth Proportional to 2,152.34, 3,226.28 and 919.92

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Solution

The fourth proportional to 2,152.34, 3,226.28 and 919.92 is: 1,378.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.34 : 3,226.28 = 919.92 : x
  2. Step 2: Convert to fraction form
    2,152.34/3,226.28 = 919.92/x
  3. Step 3: Cross multiply
    2,152.34x = 3,226.28 × 919.92
  4. Step 4: Simplify right side
    2,152.34x = 2,967,919.50
  5. Step 5: Solve for x
    x = 2,967,919.50/2,152.34
  6. Step 6: Final answer
    x = 1,378.93

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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.