Home / 7,831.25-10,805.60-4,643.96

Finding the Fourth Proportional to 7,831.25, 10,805.60 and 4,643.96

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Solution

The fourth proportional to 7,831.25, 10,805.60 and 4,643.96 is: 6,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,831.25 : 10,805.60 = 4,643.96 : x
  2. Step 2: Convert to fraction form
    7,831.25/10,805.60 = 4,643.96/x
  3. Step 3: Cross multiply
    7,831.25x = 10,805.60 × 4,643.96
  4. Step 4: Simplify right side
    7,831.25x = 50,180,774.18
  5. Step 5: Solve for x
    x = 50,180,774.18/7,831.25
  6. Step 6: Final answer
    x = 6,407.76

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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.