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Finding the Fourth Proportional to 5,330.42, 7,999.20 and 1,867.67

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Solution

The fourth proportional to 5,330.42, 7,999.20 and 1,867.67 is: 2,802.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.42 : 7,999.20 = 1,867.67 : x
  2. Step 2: Convert to fraction form
    5,330.42/7,999.20 = 1,867.67/x
  3. Step 3: Cross multiply
    5,330.42x = 7,999.20 × 1,867.67
  4. Step 4: Simplify right side
    5,330.42x = 14,939,865.86
  5. Step 5: Solve for x
    x = 14,939,865.86/5,330.42
  6. Step 6: Final answer
    x = 2,802.76

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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.