Home / 7,831.40-10,807.13-4,246.16

Finding the Fourth Proportional to 7,831.40, 10,807.13 and 4,246.16

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Solution

The fourth proportional to 7,831.40, 10,807.13 and 4,246.16 is: 5,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.40 : 10,807.13 = 4,246.16 : x
  2. Step 2: Convert to fraction form
    7,831.40/10,807.13 = 4,246.16/x
  3. Step 3: Cross multiply
    7,831.40x = 10,807.13 × 4,246.16
  4. Step 4: Simplify right side
    7,831.40x = 45,888,759.70
  5. Step 5: Solve for x
    x = 45,888,759.70/7,831.40
  6. Step 6: Final answer
    x = 5,859.59

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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.