Home / 1,165.06-1,743.45-1,148.50

Finding the Fourth Proportional to 1,165.06, 1,743.45 and 1,148.50

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Solution

The fourth proportional to 1,165.06, 1,743.45 and 1,148.50 is: 1,718.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.06 : 1,743.45 = 1,148.50 : x
  2. Step 2: Convert to fraction form
    1,165.06/1,743.45 = 1,148.50/x
  3. Step 3: Cross multiply
    1,165.06x = 1,743.45 × 1,148.50
  4. Step 4: Simplify right side
    1,165.06x = 2,002,352.33
  5. Step 5: Solve for x
    x = 2,002,352.33/1,165.06
  6. Step 6: Final answer
    x = 1,718.67

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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.