Home / 3,110.02-4,665.82-918.75

Finding the Fourth Proportional to 3,110.02, 4,665.82 and 918.75

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Solution

The fourth proportional to 3,110.02, 4,665.82 and 918.75 is: 1,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.02 : 4,665.82 = 918.75 : x
  2. Step 2: Convert to fraction form
    3,110.02/4,665.82 = 918.75/x
  3. Step 3: Cross multiply
    3,110.02x = 4,665.82 × 918.75
  4. Step 4: Simplify right side
    3,110.02x = 4,286,722.13
  5. Step 5: Solve for x
    x = 4,286,722.13/3,110.02
  6. Step 6: Final answer
    x = 1,378.36

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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.