Home / 5,589.06-7,705.31-4,220.35

Finding the Fourth Proportional to 5,589.06, 7,705.31 and 4,220.35

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Solution

The fourth proportional to 5,589.06, 7,705.31 and 4,220.35 is: 5,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.06 : 7,705.31 = 4,220.35 : x
  2. Step 2: Convert to fraction form
    5,589.06/7,705.31 = 4,220.35/x
  3. Step 3: Cross multiply
    5,589.06x = 7,705.31 × 4,220.35
  4. Step 4: Simplify right side
    5,589.06x = 32,519,085.14
  5. Step 5: Solve for x
    x = 32,519,085.14/5,589.06
  6. Step 6: Final answer
    x = 5,818.34

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Half scale
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Double scale
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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.