Home / 2,921.47-4,031.57-1,595.16

Finding the Fourth Proportional to 2,921.47, 4,031.57 and 1,595.16

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Solution

The fourth proportional to 2,921.47, 4,031.57 and 1,595.16 is: 2,201.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.47 : 4,031.57 = 1,595.16 : x
  2. Step 2: Convert to fraction form
    2,921.47/4,031.57 = 1,595.16/x
  3. Step 3: Cross multiply
    2,921.47x = 4,031.57 × 1,595.16
  4. Step 4: Simplify right side
    2,921.47x = 6,431,003.19
  5. Step 5: Solve for x
    x = 6,431,003.19/2,921.47
  6. Step 6: Final answer
    x = 2,201.29

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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.