Home / 2,217.51-3,327.75-918.98

Finding the Fourth Proportional to 2,217.51, 3,327.75 and 918.98

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Solution

The fourth proportional to 2,217.51, 3,327.75 and 918.98 is: 1,379.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.51 : 3,327.75 = 918.98 : x
  2. Step 2: Convert to fraction form
    2,217.51/3,327.75 = 918.98/x
  3. Step 3: Cross multiply
    2,217.51x = 3,327.75 × 918.98
  4. Step 4: Simplify right side
    2,217.51x = 3,058,131.54
  5. Step 5: Solve for x
    x = 3,058,131.54/2,217.51
  6. Step 6: Final answer
    x = 1,379.08

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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.