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Finding the Fourth Proportional to 2,263.40, 3,395.09 and 619.94

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Solution

The fourth proportional to 2,263.40, 3,395.09 and 619.94 is: 929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.40 : 3,395.09 = 619.94 : x
  2. Step 2: Convert to fraction form
    2,263.40/3,395.09 = 619.94/x
  3. Step 3: Cross multiply
    2,263.40x = 3,395.09 × 619.94
  4. Step 4: Simplify right side
    2,263.40x = 2,104,762.13
  5. Step 5: Solve for x
    x = 2,104,762.13/2,263.40
  6. Step 6: Final answer
    x = 929.91

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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.