Home / 4,211.80-5,813.17-2,887.25

Finding the Fourth Proportional to 4,211.80, 5,813.17 and 2,887.25

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Solution

The fourth proportional to 4,211.80, 5,813.17 and 2,887.25 is: 3,985.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,211.80 : 5,813.17 = 2,887.25 : x
  2. Step 2: Convert to fraction form
    4,211.80/5,813.17 = 2,887.25/x
  3. Step 3: Cross multiply
    4,211.80x = 5,813.17 × 2,887.25
  4. Step 4: Simplify right side
    4,211.80x = 16,784,038.80
  5. Step 5: Solve for x
    x = 16,784,038.80/4,211.80
  6. Step 6: Final answer
    x = 3,985.01

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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.