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Finding the Fourth Proportional to 951.65, 1,311.33 and 900.01

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Solution

The fourth proportional to 951.65, 1,311.33 and 900.01 is: 1,240.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    951.65 : 1,311.33 = 900.01 : x
  2. Step 2: Convert to fraction form
    951.65/1,311.33 = 900.01/x
  3. Step 3: Cross multiply
    951.65x = 1,311.33 × 900.01
  4. Step 4: Simplify right side
    951.65x = 1,180,210.11
  5. Step 5: Solve for x
    x = 1,180,210.11/951.65
  6. Step 6: Final answer
    x = 1,240.17

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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.