Home / 7,518.10-11,276.34-1,972

Finding the Fourth Proportional to 7,518.10, 11,276.34 and 1,972

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Solution

The fourth proportional to 7,518.10, 11,276.34 and 1,972 is: 2,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.10 : 11,276.34 = 1,972 : x
  2. Step 2: Convert to fraction form
    7,518.10/11,276.34 = 1,972/x
  3. Step 3: Cross multiply
    7,518.10x = 11,276.34 × 1,972
  4. Step 4: Simplify right side
    7,518.10x = 22,236,942.48
  5. Step 5: Solve for x
    x = 22,236,942.48/7,518.10
  6. Step 6: Final answer
    x = 2,957.79

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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.