Home / 2,798.18-3,862.11-2,191.33

Finding the Fourth Proportional to 2,798.18, 3,862.11 and 2,191.33

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Solution

The fourth proportional to 2,798.18, 3,862.11 and 2,191.33 is: 3,024.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798.18 : 3,862.11 = 2,191.33 : x
  2. Step 2: Convert to fraction form
    2,798.18/3,862.11 = 2,191.33/x
  3. Step 3: Cross multiply
    2,798.18x = 3,862.11 × 2,191.33
  4. Step 4: Simplify right side
    2,798.18x = 8,463,157.51
  5. Step 5: Solve for x
    x = 8,463,157.51/2,798.18
  6. Step 6: Final answer
    x = 3,024.52

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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.