Home / 5,820.88-8,686.61-5,198.08

Finding the Fourth Proportional to 5,820.88, 8,686.61 and 5,198.08

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Solution

The fourth proportional to 5,820.88, 8,686.61 and 5,198.08 is: 7,757.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.88 : 8,686.61 = 5,198.08 : x
  2. Step 2: Convert to fraction form
    5,820.88/8,686.61 = 5,198.08/x
  3. Step 3: Cross multiply
    5,820.88x = 8,686.61 × 5,198.08
  4. Step 4: Simplify right side
    5,820.88x = 45,153,693.71
  5. Step 5: Solve for x
    x = 45,153,693.71/5,820.88
  6. Step 6: Final answer
    x = 7,757.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.