Home / 5,419.98-8,130.51-2,499.12

Finding the Fourth Proportional to 5,419.98, 8,130.51 and 2,499.12

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Solution

The fourth proportional to 5,419.98, 8,130.51 and 2,499.12 is: 3,748.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.98 : 8,130.51 = 2,499.12 : x
  2. Step 2: Convert to fraction form
    5,419.98/8,130.51 = 2,499.12/x
  3. Step 3: Cross multiply
    5,419.98x = 8,130.51 × 2,499.12
  4. Step 4: Simplify right side
    5,419.98x = 20,319,120.15
  5. Step 5: Solve for x
    x = 20,319,120.15/5,419.98
  6. Step 6: Final answer
    x = 3,748.93

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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.