Home / 6,864.02-9,472.37-3,720.21

Finding the Fourth Proportional to 6,864.02, 9,472.37 and 3,720.21

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Solution

The fourth proportional to 6,864.02, 9,472.37 and 3,720.21 is: 5,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.02 : 9,472.37 = 3,720.21 : x
  2. Step 2: Convert to fraction form
    6,864.02/9,472.37 = 3,720.21/x
  3. Step 3: Cross multiply
    6,864.02x = 9,472.37 × 3,720.21
  4. Step 4: Simplify right side
    6,864.02x = 35,239,215.22
  5. Step 5: Solve for x
    x = 35,239,215.22/6,864.02
  6. Step 6: Final answer
    x = 5,133.90

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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.