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Finding the Fourth Proportional to 1,524.81, 2,287.61 and 703.67

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Solution

The fourth proportional to 1,524.81, 2,287.61 and 703.67 is: 1,055.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.81 : 2,287.61 = 703.67 : x
  2. Step 2: Convert to fraction form
    1,524.81/2,287.61 = 703.67/x
  3. Step 3: Cross multiply
    1,524.81x = 2,287.61 × 703.67
  4. Step 4: Simplify right side
    1,524.81x = 1,609,723.08
  5. Step 5: Solve for x
    x = 1,609,723.08/1,524.81
  6. Step 6: Final answer
    x = 1,055.69

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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.