Home / 2,921.45-4,031.53-1,595.17

Finding the Fourth Proportional to 2,921.45, 4,031.53 and 1,595.17

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Solution

The fourth proportional to 2,921.45, 4,031.53 and 1,595.17 is: 2,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.45 : 4,031.53 = 1,595.17 : x
  2. Step 2: Convert to fraction form
    2,921.45/4,031.53 = 1,595.17/x
  3. Step 3: Cross multiply
    2,921.45x = 4,031.53 × 1,595.17
  4. Step 4: Simplify right side
    2,921.45x = 6,430,975.71
  5. Step 5: Solve for x
    x = 6,430,975.71/2,921.45
  6. Step 6: Final answer
    x = 2,201.30

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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.