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Finding the Fourth Proportional to 1,151.36, 1,726.93 and 535.07

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Solution

The fourth proportional to 1,151.36, 1,726.93 and 535.07 is: 802.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.36 : 1,726.93 = 535.07 : x
  2. Step 2: Convert to fraction form
    1,151.36/1,726.93 = 535.07/x
  3. Step 3: Cross multiply
    1,151.36x = 1,726.93 × 535.07
  4. Step 4: Simplify right side
    1,151.36x = 924,028.44
  5. Step 5: Solve for x
    x = 924,028.44/1,151.36
  6. Step 6: Final answer
    x = 802.55

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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.