Home / 5,146.47-7,718.15-1,636.34

Finding the Fourth Proportional to 5,146.47, 7,718.15 and 1,636.34

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Solution

The fourth proportional to 5,146.47, 7,718.15 and 1,636.34 is: 2,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.47 : 7,718.15 = 1,636.34 : x
  2. Step 2: Convert to fraction form
    5,146.47/7,718.15 = 1,636.34/x
  3. Step 3: Cross multiply
    5,146.47x = 7,718.15 × 1,636.34
  4. Step 4: Simplify right side
    5,146.47x = 12,629,483.07
  5. Step 5: Solve for x
    x = 12,629,483.07/5,146.47
  6. Step 6: Final answer
    x = 2,454.01

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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.