Home / 2,776.68-4,147.47-2,339.28

Finding the Fourth Proportional to 2,776.68, 4,147.47 and 2,339.28

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Solution

The fourth proportional to 2,776.68, 4,147.47 and 2,339.28 is: 3,494.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.68 : 4,147.47 = 2,339.28 : x
  2. Step 2: Convert to fraction form
    2,776.68/4,147.47 = 2,339.28/x
  3. Step 3: Cross multiply
    2,776.68x = 4,147.47 × 2,339.28
  4. Step 4: Simplify right side
    2,776.68x = 9,702,093.62
  5. Step 5: Solve for x
    x = 9,702,093.62/2,776.68
  6. Step 6: Final answer
    x = 3,494.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.