Home / 1,398.52-2,097.78-1,166.32

Finding the Fourth Proportional to 1,398.52, 2,097.78 and 1,166.32

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Solution

The fourth proportional to 1,398.52, 2,097.78 and 1,166.32 is: 1,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398.52 : 2,097.78 = 1,166.32 : x
  2. Step 2: Convert to fraction form
    1,398.52/2,097.78 = 1,166.32/x
  3. Step 3: Cross multiply
    1,398.52x = 2,097.78 × 1,166.32
  4. Step 4: Simplify right side
    1,398.52x = 2,446,682.77
  5. Step 5: Solve for x
    x = 2,446,682.77/1,398.52
  6. Step 6: Final answer
    x = 1,749.48

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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.