Home / 4,520.79-6,239.43-3,345.21

Finding the Fourth Proportional to 4,520.79, 6,239.43 and 3,345.21

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Solution

The fourth proportional to 4,520.79, 6,239.43 and 3,345.21 is: 4,616.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,520.79 : 6,239.43 = 3,345.21 : x
  2. Step 2: Convert to fraction form
    4,520.79/6,239.43 = 3,345.21/x
  3. Step 3: Cross multiply
    4,520.79x = 6,239.43 × 3,345.21
  4. Step 4: Simplify right side
    4,520.79x = 20,872,203.63
  5. Step 5: Solve for x
    x = 20,872,203.63/4,520.79
  6. Step 6: Final answer
    x = 4,616.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.