Home / 6,439.37-9,659.39-2,057.18

Finding the Fourth Proportional to 6,439.37, 9,659.39 and 2,057.18

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Solution

The fourth proportional to 6,439.37, 9,659.39 and 2,057.18 is: 3,085.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.37 : 9,659.39 = 2,057.18 : x
  2. Step 2: Convert to fraction form
    6,439.37/9,659.39 = 2,057.18/x
  3. Step 3: Cross multiply
    6,439.37x = 9,659.39 × 2,057.18
  4. Step 4: Simplify right side
    6,439.37x = 19,871,045.34
  5. Step 5: Solve for x
    x = 19,871,045.34/6,439.37
  6. Step 6: Final answer
    x = 3,085.87

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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.