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Finding the Fourth Proportional to 2,632.64, 3,632.80 and 1,934.40

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Solution

The fourth proportional to 2,632.64, 3,632.80 and 1,934.40 is: 2,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632.64 : 3,632.80 = 1,934.40 : x
  2. Step 2: Convert to fraction form
    2,632.64/3,632.80 = 1,934.40/x
  3. Step 3: Cross multiply
    2,632.64x = 3,632.80 × 1,934.40
  4. Step 4: Simplify right side
    2,632.64x = 7,027,288.32
  5. Step 5: Solve for x
    x = 7,027,288.32/2,632.64
  6. Step 6: Final answer
    x = 2,669.29

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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.