Home / 3,218.94-4,830.17-1,487.57

Finding the Fourth Proportional to 3,218.94, 4,830.17 and 1,487.57

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Solution

The fourth proportional to 3,218.94, 4,830.17 and 1,487.57 is: 2,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.94 : 4,830.17 = 1,487.57 : x
  2. Step 2: Convert to fraction form
    3,218.94/4,830.17 = 1,487.57/x
  3. Step 3: Cross multiply
    3,218.94x = 4,830.17 × 1,487.57
  4. Step 4: Simplify right side
    3,218.94x = 7,185,184.40
  5. Step 5: Solve for x
    x = 7,185,184.40/3,218.94
  6. Step 6: Final answer
    x = 2,232.16

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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.