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Finding the Fourth Proportional to 7,059.60, 9,759.24 and 5,389.20

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Solution

The fourth proportional to 7,059.60, 9,759.24 and 5,389.20 is: 7,450.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059.60 : 9,759.24 = 5,389.20 : x
  2. Step 2: Convert to fraction form
    7,059.60/9,759.24 = 5,389.20/x
  3. Step 3: Cross multiply
    7,059.60x = 9,759.24 × 5,389.20
  4. Step 4: Simplify right side
    7,059.60x = 52,594,496.21
  5. Step 5: Solve for x
    x = 52,594,496.21/7,059.60
  6. Step 6: Final answer
    x = 7,450.07

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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.