Home / 3,718.53-5,131.35-2,039.64

Finding the Fourth Proportional to 3,718.53, 5,131.35 and 2,039.64

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Solution

The fourth proportional to 3,718.53, 5,131.35 and 2,039.64 is: 2,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,718.53 : 5,131.35 = 2,039.64 : x
  2. Step 2: Convert to fraction form
    3,718.53/5,131.35 = 2,039.64/x
  3. Step 3: Cross multiply
    3,718.53x = 5,131.35 × 2,039.64
  4. Step 4: Simplify right side
    3,718.53x = 10,466,106.71
  5. Step 5: Solve for x
    x = 10,466,106.71/3,718.53
  6. Step 6: Final answer
    x = 2,814.58

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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.