Home / 2,117.24-3,176.46-656.67

Finding the Fourth Proportional to 2,117.24, 3,176.46 and 656.67

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Solution

The fourth proportional to 2,117.24, 3,176.46 and 656.67 is: 985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.24 : 3,176.46 = 656.67 : x
  2. Step 2: Convert to fraction form
    2,117.24/3,176.46 = 656.67/x
  3. Step 3: Cross multiply
    2,117.24x = 3,176.46 × 656.67
  4. Step 4: Simplify right side
    2,117.24x = 2,085,885.99
  5. Step 5: Solve for x
    x = 2,085,885.99/2,117.24
  6. Step 6: Final answer
    x = 985.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.