Home / 1,239.53-1,848.35-1,228.41

Finding the Fourth Proportional to 1,239.53, 1,848.35 and 1,228.41

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Solution

The fourth proportional to 1,239.53, 1,848.35 and 1,228.41 is: 1,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.53 : 1,848.35 = 1,228.41 : x
  2. Step 2: Convert to fraction form
    1,239.53/1,848.35 = 1,228.41/x
  3. Step 3: Cross multiply
    1,239.53x = 1,848.35 × 1,228.41
  4. Step 4: Simplify right side
    1,239.53x = 2,270,525.48
  5. Step 5: Solve for x
    x = 2,270,525.48/1,239.53
  6. Step 6: Final answer
    x = 1,831.77

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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.