Home / 2,956.40-4,079.64-1,630.11

Finding the Fourth Proportional to 2,956.40, 4,079.64 and 1,630.11

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Solution

The fourth proportional to 2,956.40, 4,079.64 and 1,630.11 is: 2,249.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.40 : 4,079.64 = 1,630.11 : x
  2. Step 2: Convert to fraction form
    2,956.40/4,079.64 = 1,630.11/x
  3. Step 3: Cross multiply
    2,956.40x = 4,079.64 × 1,630.11
  4. Step 4: Simplify right side
    2,956.40x = 6,650,253.81
  5. Step 5: Solve for x
    x = 6,650,253.81/2,956.40
  6. Step 6: Final answer
    x = 2,249.44

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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.