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Finding the Fourth Proportional to 4,368.90, 6,554.43 and 1,447.50

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Solution

The fourth proportional to 4,368.90, 6,554.43 and 1,447.50 is: 2,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,368.90 : 6,554.43 = 1,447.50 : x
  2. Step 2: Convert to fraction form
    4,368.90/6,554.43 = 1,447.50/x
  3. Step 3: Cross multiply
    4,368.90x = 6,554.43 × 1,447.50
  4. Step 4: Simplify right side
    4,368.90x = 9,487,537.43
  5. Step 5: Solve for x
    x = 9,487,537.43/4,368.90
  6. Step 6: Final answer
    x = 2,171.61

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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.