Home / 1,270.46-1,752.60-1,095.50

Finding the Fourth Proportional to 1,270.46, 1,752.60 and 1,095.50

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Solution

The fourth proportional to 1,270.46, 1,752.60 and 1,095.50 is: 1,511.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.46 : 1,752.60 = 1,095.50 : x
  2. Step 2: Convert to fraction form
    1,270.46/1,752.60 = 1,095.50/x
  3. Step 3: Cross multiply
    1,270.46x = 1,752.60 × 1,095.50
  4. Step 4: Simplify right side
    1,270.46x = 1,919,973.30
  5. Step 5: Solve for x
    x = 1,919,973.30/1,270.46
  6. Step 6: Final answer
    x = 1,511.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.