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Finding the Fourth Proportional to 1,150.00, 1,725.21 and 1,045.67

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Solution

The fourth proportional to 1,150.00, 1,725.21 and 1,045.67 is: 1,568.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.00 : 1,725.21 = 1,045.67 : x
  2. Step 2: Convert to fraction form
    1,150.00/1,725.21 = 1,045.67/x
  3. Step 3: Cross multiply
    1,150.00x = 1,725.21 × 1,045.67
  4. Step 4: Simplify right side
    1,150.00x = 1,803,991.71
  5. Step 5: Solve for x
    x = 1,803,991.71/1,150.00
  6. Step 6: Final answer
    x = 1,568.69

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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.