Home / 2,178.11-3,006.68-1,548.74

Finding the Fourth Proportional to 2,178.11, 3,006.68 and 1,548.74

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Solution

The fourth proportional to 2,178.11, 3,006.68 and 1,548.74 is: 2,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.11 : 3,006.68 = 1,548.74 : x
  2. Step 2: Convert to fraction form
    2,178.11/3,006.68 = 1,548.74/x
  3. Step 3: Cross multiply
    2,178.11x = 3,006.68 × 1,548.74
  4. Step 4: Simplify right side
    2,178.11x = 4,656,542.81
  5. Step 5: Solve for x
    x = 4,656,542.81/2,178.11
  6. Step 6: Final answer
    x = 2,137.89

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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.