Home / 5,100.48-7,647.39-2,140.32

Finding the Fourth Proportional to 5,100.48, 7,647.39 and 2,140.32

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Solution

The fourth proportional to 5,100.48, 7,647.39 and 2,140.32 is: 3,209.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.48 : 7,647.39 = 2,140.32 : x
  2. Step 2: Convert to fraction form
    5,100.48/7,647.39 = 2,140.32/x
  3. Step 3: Cross multiply
    5,100.48x = 7,647.39 × 2,140.32
  4. Step 4: Simplify right side
    5,100.48x = 16,367,861.76
  5. Step 5: Solve for x
    x = 16,367,861.76/5,100.48
  6. Step 6: Final answer
    x = 3,209.08

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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.