Home / 4,260.94-6,389.18-1,918.92

Finding the Fourth Proportional to 4,260.94, 6,389.18 and 1,918.92

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Solution

The fourth proportional to 4,260.94, 6,389.18 and 1,918.92 is: 2,877.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,260.94 : 6,389.18 = 1,918.92 : x
  2. Step 2: Convert to fraction form
    4,260.94/6,389.18 = 1,918.92/x
  3. Step 3: Cross multiply
    4,260.94x = 6,389.18 × 1,918.92
  4. Step 4: Simplify right side
    4,260.94x = 12,260,346.85
  5. Step 5: Solve for x
    x = 12,260,346.85/4,260.94
  6. Step 6: Final answer
    x = 2,877.38

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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.