Home / 2,299.57-3,173.49-1,291.32

Finding the Fourth Proportional to 2,299.57, 3,173.49 and 1,291.32

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Solution

The fourth proportional to 2,299.57, 3,173.49 and 1,291.32 is: 1,782.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.57 : 3,173.49 = 1,291.32 : x
  2. Step 2: Convert to fraction form
    2,299.57/3,173.49 = 1,291.32/x
  3. Step 3: Cross multiply
    2,299.57x = 3,173.49 × 1,291.32
  4. Step 4: Simplify right side
    2,299.57x = 4,097,991.11
  5. Step 5: Solve for x
    x = 4,097,991.11/2,299.57
  6. Step 6: Final answer
    x = 1,782.07

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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.