Home / 2,921.27-4,031.36-1,595

Finding the Fourth Proportional to 2,921.27, 4,031.36 and 1,595

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Solution

The fourth proportional to 2,921.27, 4,031.36 and 1,595 is: 2,201.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.27 : 4,031.36 = 1,595 : x
  2. Step 2: Convert to fraction form
    2,921.27/4,031.36 = 1,595/x
  3. Step 3: Cross multiply
    2,921.27x = 4,031.36 × 1,595
  4. Step 4: Simplify right side
    2,921.27x = 6,430,019.20
  5. Step 5: Solve for x
    x = 6,430,019.20/2,921.27
  6. Step 6: Final answer
    x = 2,201.10

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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.