Home / 4,280.34-6,418.95-1,815.36

Finding the Fourth Proportional to 4,280.34, 6,418.95 and 1,815.36

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Solution

The fourth proportional to 4,280.34, 6,418.95 and 1,815.36 is: 2,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.34 : 6,418.95 = 1,815.36 : x
  2. Step 2: Convert to fraction form
    4,280.34/6,418.95 = 1,815.36/x
  3. Step 3: Cross multiply
    4,280.34x = 6,418.95 × 1,815.36
  4. Step 4: Simplify right side
    4,280.34x = 11,652,710.30
  5. Step 5: Solve for x
    x = 11,652,710.30/4,280.34
  6. Step 6: Final answer
    x = 2,722.38

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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.