Home / 5,095.53-7,031.81-2,857.40

Finding the Fourth Proportional to 5,095.53, 7,031.81 and 2,857.40

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Solution

The fourth proportional to 5,095.53, 7,031.81 and 2,857.40 is: 3,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,095.53 : 7,031.81 = 2,857.40 : x
  2. Step 2: Convert to fraction form
    5,095.53/7,031.81 = 2,857.40/x
  3. Step 3: Cross multiply
    5,095.53x = 7,031.81 × 2,857.40
  4. Step 4: Simplify right side
    5,095.53x = 20,092,712.02
  5. Step 5: Solve for x
    x = 20,092,712.02/5,095.53
  6. Step 6: Final answer
    x = 3,943.20

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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.