Home / 5,519.40-8,279.10-5,263.40

Finding the Fourth Proportional to 5,519.40, 8,279.10 and 5,263.40

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Solution

The fourth proportional to 5,519.40, 8,279.10 and 5,263.40 is: 7,895.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.40 : 8,279.10 = 5,263.40 : x
  2. Step 2: Convert to fraction form
    5,519.40/8,279.10 = 5,263.40/x
  3. Step 3: Cross multiply
    5,519.40x = 8,279.10 × 5,263.40
  4. Step 4: Simplify right side
    5,519.40x = 43,576,214.94
  5. Step 5: Solve for x
    x = 43,576,214.94/5,519.40
  6. Step 6: Final answer
    x = 7,895.10

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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.