Home / 6,864.12-9,472.45-3,720.31

Finding the Fourth Proportional to 6,864.12, 9,472.45 and 3,720.31

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Solution

The fourth proportional to 6,864.12, 9,472.45 and 3,720.31 is: 5,134.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.12 : 9,472.45 = 3,720.31 : x
  2. Step 2: Convert to fraction form
    6,864.12/9,472.45 = 3,720.31/x
  3. Step 3: Cross multiply
    6,864.12x = 9,472.45 × 3,720.31
  4. Step 4: Simplify right side
    6,864.12x = 35,240,450.46
  5. Step 5: Solve for x
    x = 35,240,450.46/6,864.12
  6. Step 6: Final answer
    x = 5,134.01

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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.