Home / 7,825.40-11,739.12-2,558.57

Finding the Fourth Proportional to 7,825.40, 11,739.12 and 2,558.57

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Solution

The fourth proportional to 7,825.40, 11,739.12 and 2,558.57 is: 3,838.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.40 : 11,739.12 = 2,558.57 : x
  2. Step 2: Convert to fraction form
    7,825.40/11,739.12 = 2,558.57/x
  3. Step 3: Cross multiply
    7,825.40x = 11,739.12 × 2,558.57
  4. Step 4: Simplify right side
    7,825.40x = 30,035,360.26
  5. Step 5: Solve for x
    x = 30,035,360.26/7,825.40
  6. Step 6: Final answer
    x = 3,838.19

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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.