Home / 7,057.24-9,739.38-3,913.72

Finding the Fourth Proportional to 7,057.24, 9,739.38 and 3,913.72

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Solution

The fourth proportional to 7,057.24, 9,739.38 and 3,913.72 is: 5,401.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,057.24 : 9,739.38 = 3,913.72 : x
  2. Step 2: Convert to fraction form
    7,057.24/9,739.38 = 3,913.72/x
  3. Step 3: Cross multiply
    7,057.24x = 9,739.38 × 3,913.72
  4. Step 4: Simplify right side
    7,057.24x = 38,117,206.29
  5. Step 5: Solve for x
    x = 38,117,206.29/7,057.24
  6. Step 6: Final answer
    x = 5,401.15

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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.