Home / 7,240.52-10,858.20-2,856.80

Finding the Fourth Proportional to 7,240.52, 10,858.20 and 2,856.80

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Solution

The fourth proportional to 7,240.52, 10,858.20 and 2,856.80 is: 4,284.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.52 : 10,858.20 = 2,856.80 : x
  2. Step 2: Convert to fraction form
    7,240.52/10,858.20 = 2,856.80/x
  3. Step 3: Cross multiply
    7,240.52x = 10,858.20 × 2,856.80
  4. Step 4: Simplify right side
    7,240.52x = 31,019,705.76
  5. Step 5: Solve for x
    x = 31,019,705.76/7,240.52
  6. Step 6: Final answer
    x = 4,284.18

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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.