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Finding the Fourth Proportional to 4,781.68, 6,599.28 and 2,918.68

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Solution

The fourth proportional to 4,781.68, 6,599.28 and 2,918.68 is: 4,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.68 : 6,599.28 = 2,918.68 : x
  2. Step 2: Convert to fraction form
    4,781.68/6,599.28 = 2,918.68/x
  3. Step 3: Cross multiply
    4,781.68x = 6,599.28 × 2,918.68
  4. Step 4: Simplify right side
    4,781.68x = 19,261,186.55
  5. Step 5: Solve for x
    x = 19,261,186.55/4,781.68
  6. Step 6: Final answer
    x = 4,028.12

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1.5x scale

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.