Home / 5,320.17-7,980.20-2,396.40

Finding the Fourth Proportional to 5,320.17, 7,980.20 and 2,396.40

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Solution

The fourth proportional to 5,320.17, 7,980.20 and 2,396.40 is: 3,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.17 : 7,980.20 = 2,396.40 : x
  2. Step 2: Convert to fraction form
    5,320.17/7,980.20 = 2,396.40/x
  3. Step 3: Cross multiply
    5,320.17x = 7,980.20 × 2,396.40
  4. Step 4: Simplify right side
    5,320.17x = 19,123,739.30
  5. Step 5: Solve for x
    x = 19,123,739.30/5,320.17
  6. Step 6: Final answer
    x = 3,594.57

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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.