Home / 2,632.70-3,929.78-2,321.32

Finding the Fourth Proportional to 2,632.70, 3,929.78 and 2,321.32

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Solution

The fourth proportional to 2,632.70, 3,929.78 and 2,321.32 is: 3,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632.70 : 3,929.78 = 2,321.32 : x
  2. Step 2: Convert to fraction form
    2,632.70/3,929.78 = 2,321.32/x
  3. Step 3: Cross multiply
    2,632.70x = 3,929.78 × 2,321.32
  4. Step 4: Simplify right side
    2,632.70x = 9,122,271.11
  5. Step 5: Solve for x
    x = 9,122,271.11/2,632.70
  6. Step 6: Final answer
    x = 3,464.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.