Home / 7,018.49-9,685.64-3,831.95

Finding the Fourth Proportional to 7,018.49, 9,685.64 and 3,831.95

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Solution

The fourth proportional to 7,018.49, 9,685.64 and 3,831.95 is: 5,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.49 : 9,685.64 = 3,831.95 : x
  2. Step 2: Convert to fraction form
    7,018.49/9,685.64 = 3,831.95/x
  3. Step 3: Cross multiply
    7,018.49x = 9,685.64 × 3,831.95
  4. Step 4: Simplify right side
    7,018.49x = 37,114,888.20
  5. Step 5: Solve for x
    x = 37,114,888.20/7,018.49
  6. Step 6: Final answer
    x = 5,288.16

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Why These Related Problems?

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