Home / 4,227.40-6,341.10-1,918.90

Finding the Fourth Proportional to 4,227.40, 6,341.10 and 1,918.90

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Solution

The fourth proportional to 4,227.40, 6,341.10 and 1,918.90 is: 2,878.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,227.40 : 6,341.10 = 1,918.90 : x
  2. Step 2: Convert to fraction form
    4,227.40/6,341.10 = 1,918.90/x
  3. Step 3: Cross multiply
    4,227.40x = 6,341.10 × 1,918.90
  4. Step 4: Simplify right side
    4,227.40x = 12,167,936.79
  5. Step 5: Solve for x
    x = 12,167,936.79/4,227.40
  6. Step 6: Final answer
    x = 2,878.35

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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.