Home / 7,474.89-10,308.48-4,921.57

Finding the Fourth Proportional to 7,474.89, 10,308.48 and 4,921.57

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Solution

The fourth proportional to 7,474.89, 10,308.48 and 4,921.57 is: 6,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.89 : 10,308.48 = 4,921.57 : x
  2. Step 2: Convert to fraction form
    7,474.89/10,308.48 = 4,921.57/x
  3. Step 3: Cross multiply
    7,474.89x = 10,308.48 × 4,921.57
  4. Step 4: Simplify right side
    7,474.89x = 50,733,905.91
  5. Step 5: Solve for x
    x = 50,733,905.91/7,474.89
  6. Step 6: Final answer
    x = 6,787.24

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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.