Home / 3,617.74-4,990.35-2,219.50

Finding the Fourth Proportional to 3,617.74, 4,990.35 and 2,219.50

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Solution

The fourth proportional to 3,617.74, 4,990.35 and 2,219.50 is: 3,061.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.74 : 4,990.35 = 2,219.50 : x
  2. Step 2: Convert to fraction form
    3,617.74/4,990.35 = 2,219.50/x
  3. Step 3: Cross multiply
    3,617.74x = 4,990.35 × 2,219.50
  4. Step 4: Simplify right side
    3,617.74x = 11,076,081.83
  5. Step 5: Solve for x
    x = 11,076,081.83/3,617.74
  6. Step 6: Final answer
    x = 3,061.60

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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.