Home / 2,921.72-4,360.08-2,610.32

Finding the Fourth Proportional to 2,921.72, 4,360.08 and 2,610.32

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Solution

The fourth proportional to 2,921.72, 4,360.08 and 2,610.32 is: 3,895.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.72 : 4,360.08 = 2,610.32 : x
  2. Step 2: Convert to fraction form
    2,921.72/4,360.08 = 2,610.32/x
  3. Step 3: Cross multiply
    2,921.72x = 4,360.08 × 2,610.32
  4. Step 4: Simplify right side
    2,921.72x = 11,381,204.03
  5. Step 5: Solve for x
    x = 11,381,204.03/2,921.72
  6. Step 6: Final answer
    x = 3,895.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.