Home / 5,039.21-7,557.66-1,918.10

Finding the Fourth Proportional to 5,039.21, 7,557.66 and 1,918.10

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Solution

The fourth proportional to 5,039.21, 7,557.66 and 1,918.10 is: 2,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.21 : 7,557.66 = 1,918.10 : x
  2. Step 2: Convert to fraction form
    5,039.21/7,557.66 = 1,918.10/x
  3. Step 3: Cross multiply
    5,039.21x = 7,557.66 × 1,918.10
  4. Step 4: Simplify right side
    5,039.21x = 14,496,309.86
  5. Step 5: Solve for x
    x = 14,496,309.86/5,039.21
  6. Step 6: Final answer
    x = 2,876.71

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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.