Home / 7,831.72-10,807.88-4,294.70

Finding the Fourth Proportional to 7,831.72, 10,807.88 and 4,294.70

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Solution

The fourth proportional to 7,831.72, 10,807.88 and 4,294.70 is: 5,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.72 : 10,807.88 = 4,294.70 : x
  2. Step 2: Convert to fraction form
    7,831.72/10,807.88 = 4,294.70/x
  3. Step 3: Cross multiply
    7,831.72x = 10,807.88 × 4,294.70
  4. Step 4: Simplify right side
    7,831.72x = 46,416,585.95
  5. Step 5: Solve for x
    x = 46,416,585.95/7,831.72
  6. Step 6: Final answer
    x = 5,926.74

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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.