Home / 7,515.38-11,271.56-2,585.22

Finding the Fourth Proportional to 7,515.38, 11,271.56 and 2,585.22

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Solution

The fourth proportional to 7,515.38, 11,271.56 and 2,585.22 is: 3,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.38 : 11,271.56 = 2,585.22 : x
  2. Step 2: Convert to fraction form
    7,515.38/11,271.56 = 2,585.22/x
  3. Step 3: Cross multiply
    7,515.38x = 11,271.56 × 2,585.22
  4. Step 4: Simplify right side
    7,515.38x = 29,139,407.15
  5. Step 5: Solve for x
    x = 29,139,407.15/7,515.38
  6. Step 6: Final answer
    x = 3,877.30

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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.