Home / 2,717.10-3,749.58-1,538.18

Finding the Fourth Proportional to 2,717.10, 3,749.58 and 1,538.18

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Solution

The fourth proportional to 2,717.10, 3,749.58 and 1,538.18 is: 2,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.10 : 3,749.58 = 1,538.18 : x
  2. Step 2: Convert to fraction form
    2,717.10/3,749.58 = 1,538.18/x
  3. Step 3: Cross multiply
    2,717.10x = 3,749.58 × 1,538.18
  4. Step 4: Simplify right side
    2,717.10x = 5,767,510.22
  5. Step 5: Solve for x
    x = 5,767,510.22/2,717.10
  6. Step 6: Final answer
    x = 2,122.67

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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.