Home / 3,717.96-5,130.67-2,102.71

Finding the Fourth Proportional to 3,717.96, 5,130.67 and 2,102.71

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Solution

The fourth proportional to 3,717.96, 5,130.67 and 2,102.71 is: 2,901.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.96 : 5,130.67 = 2,102.71 : x
  2. Step 2: Convert to fraction form
    3,717.96/5,130.67 = 2,102.71/x
  3. Step 3: Cross multiply
    3,717.96x = 5,130.67 × 2,102.71
  4. Step 4: Simplify right side
    3,717.96x = 10,788,311.12
  5. Step 5: Solve for x
    x = 10,788,311.12/3,717.96
  6. Step 6: Final answer
    x = 2,901.67

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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.