Home / 5,218.50-7,205.31-3,358.74

Finding the Fourth Proportional to 5,218.50, 7,205.31 and 3,358.74

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Solution

The fourth proportional to 5,218.50, 7,205.31 and 3,358.74 is: 4,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.50 : 7,205.31 = 3,358.74 : x
  2. Step 2: Convert to fraction form
    5,218.50/7,205.31 = 3,358.74/x
  3. Step 3: Cross multiply
    5,218.50x = 7,205.31 × 3,358.74
  4. Step 4: Simplify right side
    5,218.50x = 24,200,762.91
  5. Step 5: Solve for x
    x = 24,200,762.91/5,218.50
  6. Step 6: Final answer
    x = 4,637.49

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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.