Home / 7,490.64-11,224.98-3,329.40

Finding the Fourth Proportional to 7,490.64, 11,224.98 and 3,329.40

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Solution

The fourth proportional to 7,490.64, 11,224.98 and 3,329.40 is: 4,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.64 : 11,224.98 = 3,329.40 : x
  2. Step 2: Convert to fraction form
    7,490.64/11,224.98 = 3,329.40/x
  3. Step 3: Cross multiply
    7,490.64x = 11,224.98 × 3,329.40
  4. Step 4: Simplify right side
    7,490.64x = 37,372,448.41
  5. Step 5: Solve for x
    x = 37,372,448.41/7,490.64
  6. Step 6: Final answer
    x = 4,989.22

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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.