Home / 2,788.67-4,178.47-1,472.35

Finding the Fourth Proportional to 2,788.67, 4,178.47 and 1,472.35

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Solution

The fourth proportional to 2,788.67, 4,178.47 and 1,472.35 is: 2,206.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.67 : 4,178.47 = 1,472.35 : x
  2. Step 2: Convert to fraction form
    2,788.67/4,178.47 = 1,472.35/x
  3. Step 3: Cross multiply
    2,788.67x = 4,178.47 × 1,472.35
  4. Step 4: Simplify right side
    2,788.67x = 6,152,142.05
  5. Step 5: Solve for x
    x = 6,152,142.05/2,788.67
  6. Step 6: Final answer
    x = 2,206.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.