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Finding the Fourth Proportional to 3,868.36, 5,802.52 and 946.64

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Solution

The fourth proportional to 3,868.36, 5,802.52 and 946.64 is: 1,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,868.36 : 5,802.52 = 946.64 : x
  2. Step 2: Convert to fraction form
    3,868.36/5,802.52 = 946.64/x
  3. Step 3: Cross multiply
    3,868.36x = 5,802.52 × 946.64
  4. Step 4: Simplify right side
    3,868.36x = 5,492,897.53
  5. Step 5: Solve for x
    x = 5,492,897.53/3,868.36
  6. Step 6: Final answer
    x = 1,419.96

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1.5x scale

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.