Home / 3,681.53-5,079.36-2,087.91

Finding the Fourth Proportional to 3,681.53, 5,079.36 and 2,087.91

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Solution

The fourth proportional to 3,681.53, 5,079.36 and 2,087.91 is: 2,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.53 : 5,079.36 = 2,087.91 : x
  2. Step 2: Convert to fraction form
    3,681.53/5,079.36 = 2,087.91/x
  3. Step 3: Cross multiply
    3,681.53x = 5,079.36 × 2,087.91
  4. Step 4: Simplify right side
    3,681.53x = 10,605,246.54
  5. Step 5: Solve for x
    x = 10,605,246.54/3,681.53
  6. Step 6: Final answer
    x = 2,880.67

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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.