Home / 5,590.28-8,383.55-5,221.77

Finding the Fourth Proportional to 5,590.28, 8,383.55 and 5,221.77

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Solution

The fourth proportional to 5,590.28, 8,383.55 and 5,221.77 is: 7,830.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.28 : 8,383.55 = 5,221.77 : x
  2. Step 2: Convert to fraction form
    5,590.28/8,383.55 = 5,221.77/x
  3. Step 3: Cross multiply
    5,590.28x = 8,383.55 × 5,221.77
  4. Step 4: Simplify right side
    5,590.28x = 43,776,943.77
  5. Step 5: Solve for x
    x = 43,776,943.77/5,590.28
  6. Step 6: Final answer
    x = 7,830.91

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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.