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Finding the Fourth Proportional to 3,360, 4,636.68 and 1,868.16

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Solution

The fourth proportional to 3,360, 4,636.68 and 1,868.16 is: 2,577.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360 : 4,636.68 = 1,868.16 : x
  2. Step 2: Convert to fraction form
    3,360/4,636.68 = 1,868.16/x
  3. Step 3: Cross multiply
    3,360x = 4,636.68 × 1,868.16
  4. Step 4: Simplify right side
    3,360x = 8,662,060.11
  5. Step 5: Solve for x
    x = 8,662,060.11/3,360
  6. Step 6: Final answer
    x = 2,577.99

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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.