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Finding the Fourth Proportional to 1,168.99, 1,753.48 and 802.67

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Solution

The fourth proportional to 1,168.99, 1,753.48 and 802.67 is: 1,203.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168.99 : 1,753.48 = 802.67 : x
  2. Step 2: Convert to fraction form
    1,168.99/1,753.48 = 802.67/x
  3. Step 3: Cross multiply
    1,168.99x = 1,753.48 × 802.67
  4. Step 4: Simplify right side
    1,168.99x = 1,407,455.02
  5. Step 5: Solve for x
    x = 1,407,455.02/1,168.99
  6. Step 6: Final answer
    x = 1,203.99

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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.