Home / 2,720.79-3,749.43-1,835.06

Finding the Fourth Proportional to 2,720.79, 3,749.43 and 1,835.06

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Solution

The fourth proportional to 2,720.79, 3,749.43 and 1,835.06 is: 2,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.79 : 3,749.43 = 1,835.06 : x
  2. Step 2: Convert to fraction form
    2,720.79/3,749.43 = 1,835.06/x
  3. Step 3: Cross multiply
    2,720.79x = 3,749.43 × 1,835.06
  4. Step 4: Simplify right side
    2,720.79x = 6,880,419.64
  5. Step 5: Solve for x
    x = 6,880,419.64/2,720.79
  6. Step 6: Final answer
    x = 2,528.83

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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.