Home / 2,069.22-2,857.77-1,407.18

Finding the Fourth Proportional to 2,069.22, 2,857.77 and 1,407.18

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Solution

The fourth proportional to 2,069.22, 2,857.77 and 1,407.18 is: 1,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.22 : 2,857.77 = 1,407.18 : x
  2. Step 2: Convert to fraction form
    2,069.22/2,857.77 = 1,407.18/x
  3. Step 3: Cross multiply
    2,069.22x = 2,857.77 × 1,407.18
  4. Step 4: Simplify right side
    2,069.22x = 4,021,396.79
  5. Step 5: Solve for x
    x = 4,021,396.79/2,069.22
  6. Step 6: Final answer
    x = 1,943.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.