Home / 5,260.50-7,890.97-2,140.45

Finding the Fourth Proportional to 5,260.50, 7,890.97 and 2,140.45

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Solution

The fourth proportional to 5,260.50, 7,890.97 and 2,140.45 is: 3,210.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.50 : 7,890.97 = 2,140.45 : x
  2. Step 2: Convert to fraction form
    5,260.50/7,890.97 = 2,140.45/x
  3. Step 3: Cross multiply
    5,260.50x = 7,890.97 × 2,140.45
  4. Step 4: Simplify right side
    5,260.50x = 16,890,226.74
  5. Step 5: Solve for x
    x = 16,890,226.74/5,260.50
  6. Step 6: Final answer
    x = 3,210.76

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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.