Home / 1,731.20-2,598.18-909.96

Finding the Fourth Proportional to 1,731.20, 2,598.18 and 909.96

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Solution

The fourth proportional to 1,731.20, 2,598.18 and 909.96 is: 1,365.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.20 : 2,598.18 = 909.96 : x
  2. Step 2: Convert to fraction form
    1,731.20/2,598.18 = 909.96/x
  3. Step 3: Cross multiply
    1,731.20x = 2,598.18 × 909.96
  4. Step 4: Simplify right side
    1,731.20x = 2,364,239.87
  5. Step 5: Solve for x
    x = 2,364,239.87/1,731.20
  6. Step 6: Final answer
    x = 1,365.67

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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.