Home / 5,324.20-7,345.70-3,927.40

Finding the Fourth Proportional to 5,324.20, 7,345.70 and 3,927.40

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Solution

The fourth proportional to 5,324.20, 7,345.70 and 3,927.40 is: 5,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,324.20 : 7,345.70 = 3,927.40 : x
  2. Step 2: Convert to fraction form
    5,324.20/7,345.70 = 3,927.40/x
  3. Step 3: Cross multiply
    5,324.20x = 7,345.70 × 3,927.40
  4. Step 4: Simplify right side
    5,324.20x = 28,849,502.18
  5. Step 5: Solve for x
    x = 28,849,502.18/5,324.20
  6. Step 6: Final answer
    x = 5,418.56

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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.