Home / 5,191.14-7,158.20-3,419.67

Finding the Fourth Proportional to 5,191.14, 7,158.20 and 3,419.67

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Solution

The fourth proportional to 5,191.14, 7,158.20 and 3,419.67 is: 4,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.14 : 7,158.20 = 3,419.67 : x
  2. Step 2: Convert to fraction form
    5,191.14/7,158.20 = 3,419.67/x
  3. Step 3: Cross multiply
    5,191.14x = 7,158.20 × 3,419.67
  4. Step 4: Simplify right side
    5,191.14x = 24,478,681.79
  5. Step 5: Solve for x
    x = 24,478,681.79/5,191.14
  6. Step 6: Final answer
    x = 4,715.47

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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.