Home / 3,710.26-5,120.21-2,031.64

Finding the Fourth Proportional to 3,710.26, 5,120.21 and 2,031.64

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Solution

The fourth proportional to 3,710.26, 5,120.21 and 2,031.64 is: 2,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.26 : 5,120.21 = 2,031.64 : x
  2. Step 2: Convert to fraction form
    3,710.26/5,120.21 = 2,031.64/x
  3. Step 3: Cross multiply
    3,710.26x = 5,120.21 × 2,031.64
  4. Step 4: Simplify right side
    3,710.26x = 10,402,415.72
  5. Step 5: Solve for x
    x = 10,402,415.72/3,710.26
  6. Step 6: Final answer
    x = 2,803.69

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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.