Home / 2,782.36-4,167.96-1,322.92

Finding the Fourth Proportional to 2,782.36, 4,167.96 and 1,322.92

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Solution

The fourth proportional to 2,782.36, 4,167.96 and 1,322.92 is: 1,981.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.36 : 4,167.96 = 1,322.92 : x
  2. Step 2: Convert to fraction form
    2,782.36/4,167.96 = 1,322.92/x
  3. Step 3: Cross multiply
    2,782.36x = 4,167.96 × 1,322.92
  4. Step 4: Simplify right side
    2,782.36x = 5,513,877.64
  5. Step 5: Solve for x
    x = 5,513,877.64/2,782.36
  6. Step 6: Final answer
    x = 1,981.73

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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.