Home / 3,110.08-4,666.02-918.76

Finding the Fourth Proportional to 3,110.08, 4,666.02 and 918.76

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Solution

The fourth proportional to 3,110.08, 4,666.02 and 918.76 is: 1,378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.08 : 4,666.02 = 918.76 : x
  2. Step 2: Convert to fraction form
    3,110.08/4,666.02 = 918.76/x
  3. Step 3: Cross multiply
    3,110.08x = 4,666.02 × 918.76
  4. Step 4: Simplify right side
    3,110.08x = 4,286,952.54
  5. Step 5: Solve for x
    x = 4,286,952.54/3,110.08
  6. Step 6: Final answer
    x = 1,378.41

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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.