Home / 2,549.79-3,523.28-1,991.67

Finding the Fourth Proportional to 2,549.79, 3,523.28 and 1,991.67

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Solution

The fourth proportional to 2,549.79, 3,523.28 and 1,991.67 is: 2,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.79 : 3,523.28 = 1,991.67 : x
  2. Step 2: Convert to fraction form
    2,549.79/3,523.28 = 1,991.67/x
  3. Step 3: Cross multiply
    2,549.79x = 3,523.28 × 1,991.67
  4. Step 4: Simplify right side
    2,549.79x = 7,017,201.12
  5. Step 5: Solve for x
    x = 7,017,201.12/2,549.79
  6. Step 6: Final answer
    x = 2,752.07

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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.