Home / 4,278.72-6,418.08-2,430

Finding the Fourth Proportional to 4,278.72, 6,418.08 and 2,430

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Solution

The fourth proportional to 4,278.72, 6,418.08 and 2,430 is: 3,645

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.72 : 6,418.08 = 2,430 : x
  2. Step 2: Convert to fraction form
    4,278.72/6,418.08 = 2,430/x
  3. Step 3: Cross multiply
    4,278.72x = 6,418.08 × 2,430
  4. Step 4: Simplify right side
    4,278.72x = 15,595,934.40
  5. Step 5: Solve for x
    x = 15,595,934.40/4,278.72
  6. Step 6: Final answer
    x = 3,645

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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.