Home / 1,238.16-1,848.75-1,055.46

Finding the Fourth Proportional to 1,238.16, 1,848.75 and 1,055.46

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Solution

The fourth proportional to 1,238.16, 1,848.75 and 1,055.46 is: 1,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238.16 : 1,848.75 = 1,055.46 : x
  2. Step 2: Convert to fraction form
    1,238.16/1,848.75 = 1,055.46/x
  3. Step 3: Cross multiply
    1,238.16x = 1,848.75 × 1,055.46
  4. Step 4: Simplify right side
    1,238.16x = 1,951,281.68
  5. Step 5: Solve for x
    x = 1,951,281.68/1,238.16
  6. Step 6: Final answer
    x = 1,575.95

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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.