Home / 5,167.16-7,750.90-1,271.56

Finding the Fourth Proportional to 5,167.16, 7,750.90 and 1,271.56

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Solution

The fourth proportional to 5,167.16, 7,750.90 and 1,271.56 is: 1,907.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,167.16 : 7,750.90 = 1,271.56 : x
  2. Step 2: Convert to fraction form
    5,167.16/7,750.90 = 1,271.56/x
  3. Step 3: Cross multiply
    5,167.16x = 7,750.90 × 1,271.56
  4. Step 4: Simplify right side
    5,167.16x = 9,855,734.40
  5. Step 5: Solve for x
    x = 9,855,734.40/5,167.16
  6. Step 6: Final answer
    x = 1,907.38

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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.