Home / 7,378.48-11,063.64-2,931.64

Finding the Fourth Proportional to 7,378.48, 11,063.64 and 2,931.64

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Solution

The fourth proportional to 7,378.48, 11,063.64 and 2,931.64 is: 4,395.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.48 : 11,063.64 = 2,931.64 : x
  2. Step 2: Convert to fraction form
    7,378.48/11,063.64 = 2,931.64/x
  3. Step 3: Cross multiply
    7,378.48x = 11,063.64 × 2,931.64
  4. Step 4: Simplify right side
    7,378.48x = 32,434,609.57
  5. Step 5: Solve for x
    x = 32,434,609.57/7,378.48
  6. Step 6: Final answer
    x = 4,395.84

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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.