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Finding the Fourth Proportional to 5,038.99, 7,560.09 and 2,078.82

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Solution

The fourth proportional to 5,038.99, 7,560.09 and 2,078.82 is: 3,118.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.99 : 7,560.09 = 2,078.82 : x
  2. Step 2: Convert to fraction form
    5,038.99/7,560.09 = 2,078.82/x
  3. Step 3: Cross multiply
    5,038.99x = 7,560.09 × 2,078.82
  4. Step 4: Simplify right side
    5,038.99x = 15,716,066.29
  5. Step 5: Solve for x
    x = 15,716,066.29/5,038.99
  6. Step 6: Final answer
    x = 3,118.89

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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.