Home / 7,921.32-10,931.56-4,336.58

Finding the Fourth Proportional to 7,921.32, 10,931.56 and 4,336.58

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Solution

The fourth proportional to 7,921.32, 10,931.56 and 4,336.58 is: 5,984.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921.32 : 10,931.56 = 4,336.58 : x
  2. Step 2: Convert to fraction form
    7,921.32/10,931.56 = 4,336.58/x
  3. Step 3: Cross multiply
    7,921.32x = 10,931.56 × 4,336.58
  4. Step 4: Simplify right side
    7,921.32x = 47,405,584.46
  5. Step 5: Solve for x
    x = 47,405,584.46/7,921.32
  6. Step 6: Final answer
    x = 5,984.56

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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.