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Finding the Fourth Proportional to 2,858.49, 4,287.72 and 1,472.22

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Solution

The fourth proportional to 2,858.49, 4,287.72 and 1,472.22 is: 2,208.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.49 : 4,287.72 = 1,472.22 : x
  2. Step 2: Convert to fraction form
    2,858.49/4,287.72 = 1,472.22/x
  3. Step 3: Cross multiply
    2,858.49x = 4,287.72 × 1,472.22
  4. Step 4: Simplify right side
    2,858.49x = 6,312,467.14
  5. Step 5: Solve for x
    x = 6,312,467.14/2,858.49
  6. Step 6: Final answer
    x = 2,208.32

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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.