Home / 1,246.14-1,870.56-938.88

Finding the Fourth Proportional to 1,246.14, 1,870.56 and 938.88

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Solution

The fourth proportional to 1,246.14, 1,870.56 and 938.88 is: 1,409.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,246.14 : 1,870.56 = 938.88 : x
  2. Step 2: Convert to fraction form
    1,246.14/1,870.56 = 938.88/x
  3. Step 3: Cross multiply
    1,246.14x = 1,870.56 × 938.88
  4. Step 4: Simplify right side
    1,246.14x = 1,756,231.37
  5. Step 5: Solve for x
    x = 1,756,231.37/1,246.14
  6. Step 6: Final answer
    x = 1,409.34

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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.