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Finding the Fourth Proportional to 1,798.32, 2,481.51 and 1,326.47

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Solution

The fourth proportional to 1,798.32, 2,481.51 and 1,326.47 is: 1,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.32 : 2,481.51 = 1,326.47 : x
  2. Step 2: Convert to fraction form
    1,798.32/2,481.51 = 1,326.47/x
  3. Step 3: Cross multiply
    1,798.32x = 2,481.51 × 1,326.47
  4. Step 4: Simplify right side
    1,798.32x = 3,291,654.77
  5. Step 5: Solve for x
    x = 3,291,654.77/1,798.32
  6. Step 6: Final answer
    x = 1,830.41

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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.