Home / 1,664.52-2,297.18-918.56

Finding the Fourth Proportional to 1,664.52, 2,297.18 and 918.56

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Solution

The fourth proportional to 1,664.52, 2,297.18 and 918.56 is: 1,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.52 : 2,297.18 = 918.56 : x
  2. Step 2: Convert to fraction form
    1,664.52/2,297.18 = 918.56/x
  3. Step 3: Cross multiply
    1,664.52x = 2,297.18 × 918.56
  4. Step 4: Simplify right side
    1,664.52x = 2,110,081.58
  5. Step 5: Solve for x
    x = 2,110,081.58/1,664.52
  6. Step 6: Final answer
    x = 1,267.68

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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.