Home / 4,214.90-6,320.79-1,403.21

Finding the Fourth Proportional to 4,214.90, 6,320.79 and 1,403.21

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Solution

The fourth proportional to 4,214.90, 6,320.79 and 1,403.21 is: 2,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,214.90 : 6,320.79 = 1,403.21 : x
  2. Step 2: Convert to fraction form
    4,214.90/6,320.79 = 1,403.21/x
  3. Step 3: Cross multiply
    4,214.90x = 6,320.79 × 1,403.21
  4. Step 4: Simplify right side
    4,214.90x = 8,869,364.13
  5. Step 5: Solve for x
    x = 8,869,364.13/4,214.90
  6. Step 6: Final answer
    x = 2,104.29

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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.