Home / 2,391.18-3,290.85-2,022.99

Finding the Fourth Proportional to 2,391.18, 3,290.85 and 2,022.99

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Solution

The fourth proportional to 2,391.18, 3,290.85 and 2,022.99 is: 2,784.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.18 : 3,290.85 = 2,022.99 : x
  2. Step 2: Convert to fraction form
    2,391.18/3,290.85 = 2,022.99/x
  3. Step 3: Cross multiply
    2,391.18x = 3,290.85 × 2,022.99
  4. Step 4: Simplify right side
    2,391.18x = 6,657,356.64
  5. Step 5: Solve for x
    x = 6,657,356.64/2,391.18
  6. Step 6: Final answer
    x = 2,784.13

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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.