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Finding the Fourth Proportional to 2,666.52, 3,680.52 and 1,672.32

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Solution

The fourth proportional to 2,666.52, 3,680.52 and 1,672.32 is: 2,308.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.52 : 3,680.52 = 1,672.32 : x
  2. Step 2: Convert to fraction form
    2,666.52/3,680.52 = 1,672.32/x
  3. Step 3: Cross multiply
    2,666.52x = 3,680.52 × 1,672.32
  4. Step 4: Simplify right side
    2,666.52x = 6,155,007.21
  5. Step 5: Solve for x
    x = 6,155,007.21/2,666.52
  6. Step 6: Final answer
    x = 2,308.25

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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.