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Finding the Fourth Proportional to 4,287.76, 5,919.13 and 3,225.93

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Solution

The fourth proportional to 4,287.76, 5,919.13 and 3,225.93 is: 4,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.76 : 5,919.13 = 3,225.93 : x
  2. Step 2: Convert to fraction form
    4,287.76/5,919.13 = 3,225.93/x
  3. Step 3: Cross multiply
    4,287.76x = 5,919.13 × 3,225.93
  4. Step 4: Simplify right side
    4,287.76x = 19,094,699.04
  5. Step 5: Solve for x
    x = 19,094,699.04/4,287.76
  6. Step 6: Final answer
    x = 4,453.30

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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.