Home / 5,820.90-8,727.96-5,128.98

Finding the Fourth Proportional to 5,820.90, 8,727.96 and 5,128.98

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Solution

The fourth proportional to 5,820.90, 8,727.96 and 5,128.98 is: 7,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.90 : 8,727.96 = 5,128.98 : x
  2. Step 2: Convert to fraction form
    5,820.90/8,727.96 = 5,128.98/x
  3. Step 3: Cross multiply
    5,820.90x = 8,727.96 × 5,128.98
  4. Step 4: Simplify right side
    5,820.90x = 44,765,532.28
  5. Step 5: Solve for x
    x = 44,765,532.28/5,820.90
  6. Step 6: Final answer
    x = 7,690.48

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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.