Home / 5,705.80-8,558.70-5,090.20

Finding the Fourth Proportional to 5,705.80, 8,558.70 and 5,090.20

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Solution

The fourth proportional to 5,705.80, 8,558.70 and 5,090.20 is: 7,635.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.80 : 8,558.70 = 5,090.20 : x
  2. Step 2: Convert to fraction form
    5,705.80/8,558.70 = 5,090.20/x
  3. Step 3: Cross multiply
    5,705.80x = 8,558.70 × 5,090.20
  4. Step 4: Simplify right side
    5,705.80x = 43,565,494.74
  5. Step 5: Solve for x
    x = 43,565,494.74/5,705.80
  6. Step 6: Final answer
    x = 7,635.30

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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.