Home / 3,717.76-5,130.84-2,039.49

Finding the Fourth Proportional to 3,717.76, 5,130.84 and 2,039.49

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Solution

The fourth proportional to 3,717.76, 5,130.84 and 2,039.49 is: 2,814.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.76 : 5,130.84 = 2,039.49 : x
  2. Step 2: Convert to fraction form
    3,717.76/5,130.84 = 2,039.49/x
  3. Step 3: Cross multiply
    3,717.76x = 5,130.84 × 2,039.49
  4. Step 4: Simplify right side
    3,717.76x = 10,464,316.11
  5. Step 5: Solve for x
    x = 10,464,316.11/3,717.76
  6. Step 6: Final answer
    x = 2,814.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.