Home / 4,280.98-6,419.85-1,682.50

Finding the Fourth Proportional to 4,280.98, 6,419.85 and 1,682.50

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Solution

The fourth proportional to 4,280.98, 6,419.85 and 1,682.50 is: 2,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.98 : 6,419.85 = 1,682.50 : x
  2. Step 2: Convert to fraction form
    4,280.98/6,419.85 = 1,682.50/x
  3. Step 3: Cross multiply
    4,280.98x = 6,419.85 × 1,682.50
  4. Step 4: Simplify right side
    4,280.98x = 10,801,397.63
  5. Step 5: Solve for x
    x = 10,801,397.63/4,280.98
  6. Step 6: Final answer
    x = 2,523.11

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1.5x scale

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.