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Finding the Fourth Proportional to 3,722.95, 5,590.23 and 3,208.74

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Solution

The fourth proportional to 3,722.95, 5,590.23 and 3,208.74 is: 4,818.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.95 : 5,590.23 = 3,208.74 : x
  2. Step 2: Convert to fraction form
    3,722.95/5,590.23 = 3,208.74/x
  3. Step 3: Cross multiply
    3,722.95x = 5,590.23 × 3,208.74
  4. Step 4: Simplify right side
    3,722.95x = 17,937,594.61
  5. Step 5: Solve for x
    x = 17,937,594.61/3,722.95
  6. Step 6: Final answer
    x = 4,818.11

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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.