Home / 7,040.20-9,698.56-5,921.16

Finding the Fourth Proportional to 7,040.20, 9,698.56 and 5,921.16

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Solution

The fourth proportional to 7,040.20, 9,698.56 and 5,921.16 is: 8,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.20 : 9,698.56 = 5,921.16 : x
  2. Step 2: Convert to fraction form
    7,040.20/9,698.56 = 5,921.16/x
  3. Step 3: Cross multiply
    7,040.20x = 9,698.56 × 5,921.16
  4. Step 4: Simplify right side
    7,040.20x = 57,426,725.53
  5. Step 5: Solve for x
    x = 57,426,725.53/7,040.20
  6. Step 6: Final answer
    x = 8,156.97

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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.