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Finding the Fourth Proportional to 4,885.63, 6,742.19 and 2,647.53

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Solution

The fourth proportional to 4,885.63, 6,742.19 and 2,647.53 is: 3,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.63 : 6,742.19 = 2,647.53 : x
  2. Step 2: Convert to fraction form
    4,885.63/6,742.19 = 2,647.53/x
  3. Step 3: Cross multiply
    4,885.63x = 6,742.19 × 2,647.53
  4. Step 4: Simplify right side
    4,885.63x = 17,850,150.29
  5. Step 5: Solve for x
    x = 17,850,150.29/4,885.63
  6. Step 6: Final answer
    x = 3,653.60

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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.