Home / 1,127.70-1,680.44-1,095.98

Finding the Fourth Proportional to 1,127.70, 1,680.44 and 1,095.98

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Solution

The fourth proportional to 1,127.70, 1,680.44 and 1,095.98 is: 1,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127.70 : 1,680.44 = 1,095.98 : x
  2. Step 2: Convert to fraction form
    1,127.70/1,680.44 = 1,095.98/x
  3. Step 3: Cross multiply
    1,127.70x = 1,680.44 × 1,095.98
  4. Step 4: Simplify right side
    1,127.70x = 1,841,728.63
  5. Step 5: Solve for x
    x = 1,841,728.63/1,127.70
  6. Step 6: Final answer
    x = 1,633.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.