Home / 7,283.40-10,921.50-3,385.32

Finding the Fourth Proportional to 7,283.40, 10,921.50 and 3,385.32

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Solution

The fourth proportional to 7,283.40, 10,921.50 and 3,385.32 is: 5,076.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,283.40 : 10,921.50 = 3,385.32 : x
  2. Step 2: Convert to fraction form
    7,283.40/10,921.50 = 3,385.32/x
  3. Step 3: Cross multiply
    7,283.40x = 10,921.50 × 3,385.32
  4. Step 4: Simplify right side
    7,283.40x = 36,972,772.38
  5. Step 5: Solve for x
    x = 36,972,772.38/7,283.40
  6. Step 6: Final answer
    x = 5,076.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.