Home / 7,123.12-9,831.82-4,098.59

Finding the Fourth Proportional to 7,123.12, 9,831.82 and 4,098.59

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Solution

The fourth proportional to 7,123.12, 9,831.82 and 4,098.59 is: 5,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.12 : 9,831.82 = 4,098.59 : x
  2. Step 2: Convert to fraction form
    7,123.12/9,831.82 = 4,098.59/x
  3. Step 3: Cross multiply
    7,123.12x = 9,831.82 × 4,098.59
  4. Step 4: Simplify right side
    7,123.12x = 40,296,529.48
  5. Step 5: Solve for x
    x = 40,296,529.48/7,123.12
  6. Step 6: Final answer
    x = 5,657.15

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