Home / 1,004.20-1,384.26-693.16

Finding the Fourth Proportional to 1,004.20, 1,384.26 and 693.16

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Solution

The fourth proportional to 1,004.20, 1,384.26 and 693.16 is: 955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,004.20 : 1,384.26 = 693.16 : x
  2. Step 2: Convert to fraction form
    1,004.20/1,384.26 = 693.16/x
  3. Step 3: Cross multiply
    1,004.20x = 1,384.26 × 693.16
  4. Step 4: Simplify right side
    1,004.20x = 959,513.66
  5. Step 5: Solve for x
    x = 959,513.66/1,004.20
  6. Step 6: Final answer
    x = 955.50

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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.