Home / 4,260.61-6,385.53-1,918.12

Finding the Fourth Proportional to 4,260.61, 6,385.53 and 1,918.12

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Solution

The fourth proportional to 4,260.61, 6,385.53 and 1,918.12 is: 2,874.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.61 : 6,385.53 = 1,918.12 : x
  2. Step 2: Convert to fraction form
    4,260.61/6,385.53 = 1,918.12/x
  3. Step 3: Cross multiply
    4,260.61x = 6,385.53 × 1,918.12
  4. Step 4: Simplify right side
    4,260.61x = 12,248,212.80
  5. Step 5: Solve for x
    x = 12,248,212.80/4,260.61
  6. Step 6: Final answer
    x = 2,874.76

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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.