Home / 5,620.60-8,430.12-1,922.77

Finding the Fourth Proportional to 5,620.60, 8,430.12 and 1,922.77

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Solution

The fourth proportional to 5,620.60, 8,430.12 and 1,922.77 is: 2,883.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.60 : 8,430.12 = 1,922.77 : x
  2. Step 2: Convert to fraction form
    5,620.60/8,430.12 = 1,922.77/x
  3. Step 3: Cross multiply
    5,620.60x = 8,430.12 × 1,922.77
  4. Step 4: Simplify right side
    5,620.60x = 16,209,181.83
  5. Step 5: Solve for x
    x = 16,209,181.83/5,620.60
  6. Step 6: Final answer
    x = 2,883.89

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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.