Home / 5,831.15-8,047.17-3,178.62

Finding the Fourth Proportional to 5,831.15, 8,047.17 and 3,178.62

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Solution

The fourth proportional to 5,831.15, 8,047.17 and 3,178.62 is: 4,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.15 : 8,047.17 = 3,178.62 : x
  2. Step 2: Convert to fraction form
    5,831.15/8,047.17 = 3,178.62/x
  3. Step 3: Cross multiply
    5,831.15x = 8,047.17 × 3,178.62
  4. Step 4: Simplify right side
    5,831.15x = 25,578,895.51
  5. Step 5: Solve for x
    x = 25,578,895.51/5,831.15
  6. Step 6: Final answer
    x = 4,386.60

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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.