Home / 4,781.50-7,171.44-1,271.56

Finding the Fourth Proportional to 4,781.50, 7,171.44 and 1,271.56

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Solution

The fourth proportional to 4,781.50, 7,171.44 and 1,271.56 is: 1,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,781.50 : 7,171.44 = 1,271.56 : x
  2. Step 2: Convert to fraction form
    4,781.50/7,171.44 = 1,271.56/x
  3. Step 3: Cross multiply
    4,781.50x = 7,171.44 × 1,271.56
  4. Step 4: Simplify right side
    4,781.50x = 9,118,916.25
  5. Step 5: Solve for x
    x = 9,118,916.25/4,781.50
  6. Step 6: Final answer
    x = 1,907.12

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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.