Home / 5,427.07-8,140.61-2,503.78

Finding the Fourth Proportional to 5,427.07, 8,140.61 and 2,503.78

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Solution

The fourth proportional to 5,427.07, 8,140.61 and 2,503.78 is: 3,755.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.07 : 8,140.61 = 2,503.78 : x
  2. Step 2: Convert to fraction form
    5,427.07/8,140.61 = 2,503.78/x
  3. Step 3: Cross multiply
    5,427.07x = 8,140.61 × 2,503.78
  4. Step 4: Simplify right side
    5,427.07x = 20,382,296.51
  5. Step 5: Solve for x
    x = 20,382,296.51/5,427.07
  6. Step 6: Final answer
    x = 3,755.67

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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.