Home / 2,767.24-4,151.35-918.16

Finding the Fourth Proportional to 2,767.24, 4,151.35 and 918.16

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Solution

The fourth proportional to 2,767.24, 4,151.35 and 918.16 is: 1,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.24 : 4,151.35 = 918.16 : x
  2. Step 2: Convert to fraction form
    2,767.24/4,151.35 = 918.16/x
  3. Step 3: Cross multiply
    2,767.24x = 4,151.35 × 918.16
  4. Step 4: Simplify right side
    2,767.24x = 3,811,605.96
  5. Step 5: Solve for x
    x = 3,811,605.96/2,767.24
  6. Step 6: Final answer
    x = 1,377.40

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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.