Home / 5,039.88-7,560.54-2,117.40

Finding the Fourth Proportional to 5,039.88, 7,560.54 and 2,117.40

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Solution

The fourth proportional to 5,039.88, 7,560.54 and 2,117.40 is: 3,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,039.88 : 7,560.54 = 2,117.40 : x
  2. Step 2: Convert to fraction form
    5,039.88/7,560.54 = 2,117.40/x
  3. Step 3: Cross multiply
    5,039.88x = 7,560.54 × 2,117.40
  4. Step 4: Simplify right side
    5,039.88x = 16,008,687.40
  5. Step 5: Solve for x
    x = 16,008,687.40/5,039.88
  6. Step 6: Final answer
    x = 3,176.40

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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.