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Finding the Fourth Proportional to 1,526.70, 2,288.28 and 703.23

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Solution

The fourth proportional to 1,526.70, 2,288.28 and 703.23 is: 1,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,526.70 : 2,288.28 = 703.23 : x
  2. Step 2: Convert to fraction form
    1,526.70/2,288.28 = 703.23/x
  3. Step 3: Cross multiply
    1,526.70x = 2,288.28 × 703.23
  4. Step 4: Simplify right side
    1,526.70x = 1,609,187.14
  5. Step 5: Solve for x
    x = 1,609,187.14/1,526.70
  6. Step 6: Final answer
    x = 1,054.03

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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.