Home / 3,715.28-5,573.16-1,118.40

Finding the Fourth Proportional to 3,715.28, 5,573.16 and 1,118.40

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Solution

The fourth proportional to 3,715.28, 5,573.16 and 1,118.40 is: 1,677.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.28 : 5,573.16 = 1,118.40 : x
  2. Step 2: Convert to fraction form
    3,715.28/5,573.16 = 1,118.40/x
  3. Step 3: Cross multiply
    3,715.28x = 5,573.16 × 1,118.40
  4. Step 4: Simplify right side
    3,715.28x = 6,233,022.14
  5. Step 5: Solve for x
    x = 6,233,022.14/3,715.28
  6. Step 6: Final answer
    x = 1,677.67

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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.