Home / 2,921.49-4,031.67-1,595.20

Finding the Fourth Proportional to 2,921.49, 4,031.67 and 1,595.20

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Solution

The fourth proportional to 2,921.49, 4,031.67 and 1,595.20 is: 2,201.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.49 : 4,031.67 = 1,595.20 : x
  2. Step 2: Convert to fraction form
    2,921.49/4,031.67 = 1,595.20/x
  3. Step 3: Cross multiply
    2,921.49x = 4,031.67 × 1,595.20
  4. Step 4: Simplify right side
    2,921.49x = 6,431,319.98
  5. Step 5: Solve for x
    x = 6,431,319.98/2,921.49
  6. Step 6: Final answer
    x = 2,201.38

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Double scale
Find fourth proportional to 2,922.49, 4,033.05 and 1,596.20
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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.