Home / 2,153.01-2,972.45-1,408.22

Finding the Fourth Proportional to 2,153.01, 2,972.45 and 1,408.22

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Solution

The fourth proportional to 2,153.01, 2,972.45 and 1,408.22 is: 1,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.01 : 2,972.45 = 1,408.22 : x
  2. Step 2: Convert to fraction form
    2,153.01/2,972.45 = 1,408.22/x
  3. Step 3: Cross multiply
    2,153.01x = 2,972.45 × 1,408.22
  4. Step 4: Simplify right side
    2,153.01x = 4,185,863.54
  5. Step 5: Solve for x
    x = 4,185,863.54/2,153.01
  6. Step 6: Final answer
    x = 1,944.19

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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.