Home / 7,259.20-10,890.34-4,140.70

Finding the Fourth Proportional to 7,259.20, 10,890.34 and 4,140.70

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Solution

The fourth proportional to 7,259.20, 10,890.34 and 4,140.70 is: 6,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,259.20 : 10,890.34 = 4,140.70 : x
  2. Step 2: Convert to fraction form
    7,259.20/10,890.34 = 4,140.70/x
  3. Step 3: Cross multiply
    7,259.20x = 10,890.34 × 4,140.70
  4. Step 4: Simplify right side
    7,259.20x = 45,093,630.84
  5. Step 5: Solve for x
    x = 45,093,630.84/7,259.20
  6. Step 6: Final answer
    x = 6,211.93

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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.