Home / 7,131.73-9,831.49-4,890.06

Finding the Fourth Proportional to 7,131.73, 9,831.49 and 4,890.06

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Solution

The fourth proportional to 7,131.73, 9,831.49 and 4,890.06 is: 6,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.73 : 9,831.49 = 4,890.06 : x
  2. Step 2: Convert to fraction form
    7,131.73/9,831.49 = 4,890.06/x
  3. Step 3: Cross multiply
    7,131.73x = 9,831.49 × 4,890.06
  4. Step 4: Simplify right side
    7,131.73x = 48,076,575.99
  5. Step 5: Solve for x
    x = 48,076,575.99/7,131.73
  6. Step 6: Final answer
    x = 6,741.22

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1.5x scale

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.