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Finding the Fourth Proportional to 5,271.70, 7,907.55 and 4,407.70

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Solution

The fourth proportional to 5,271.70, 7,907.55 and 4,407.70 is: 6,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.70 : 7,907.55 = 4,407.70 : x
  2. Step 2: Convert to fraction form
    5,271.70/7,907.55 = 4,407.70/x
  3. Step 3: Cross multiply
    5,271.70x = 7,907.55 × 4,407.70
  4. Step 4: Simplify right side
    5,271.70x = 34,854,108.14
  5. Step 5: Solve for x
    x = 34,854,108.14/5,271.70
  6. Step 6: Final answer
    x = 6,611.55

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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.