Home / 5,431.46-8,140.88-2,503.60

Finding the Fourth Proportional to 5,431.46, 8,140.88 and 2,503.60

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Solution

The fourth proportional to 5,431.46, 8,140.88 and 2,503.60 is: 3,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.46 : 8,140.88 = 2,503.60 : x
  2. Step 2: Convert to fraction form
    5,431.46/8,140.88 = 2,503.60/x
  3. Step 3: Cross multiply
    5,431.46x = 8,140.88 × 2,503.60
  4. Step 4: Simplify right side
    5,431.46x = 20,381,507.17
  5. Step 5: Solve for x
    x = 20,381,507.17/5,431.46
  6. Step 6: Final answer
    x = 3,752.49

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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.