Home / 5,581.63-7,705.70-3,815.83

Finding the Fourth Proportional to 5,581.63, 7,705.70 and 3,815.83

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Solution

The fourth proportional to 5,581.63, 7,705.70 and 3,815.83 is: 5,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,581.63 : 7,705.70 = 3,815.83 : x
  2. Step 2: Convert to fraction form
    5,581.63/7,705.70 = 3,815.83/x
  3. Step 3: Cross multiply
    5,581.63x = 7,705.70 × 3,815.83
  4. Step 4: Simplify right side
    5,581.63x = 29,403,641.23
  5. Step 5: Solve for x
    x = 29,403,641.23/5,581.63
  6. Step 6: Final answer
    x = 5,267.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.