Home / 5,095.71-7,031.61-2,857.68

Finding the Fourth Proportional to 5,095.71, 7,031.61 and 2,857.68

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Solution

The fourth proportional to 5,095.71, 7,031.61 and 2,857.68 is: 3,943.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,095.71 : 7,031.61 = 2,857.68 : x
  2. Step 2: Convert to fraction form
    5,095.71/7,031.61 = 2,857.68/x
  3. Step 3: Cross multiply
    5,095.71x = 7,031.61 × 2,857.68
  4. Step 4: Simplify right side
    5,095.71x = 20,094,091.26
  5. Step 5: Solve for x
    x = 20,094,091.26/5,095.71
  6. Step 6: Final answer
    x = 3,943.33

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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.