Home / 5,705.60-8,558.40-5,438.30

Finding the Fourth Proportional to 5,705.60, 8,558.40 and 5,438.30

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Solution

The fourth proportional to 5,705.60, 8,558.40 and 5,438.30 is: 8,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,705.60 : 8,558.40 = 5,438.30 : x
  2. Step 2: Convert to fraction form
    5,705.60/8,558.40 = 5,438.30/x
  3. Step 3: Cross multiply
    5,705.60x = 8,558.40 × 5,438.30
  4. Step 4: Simplify right side
    5,705.60x = 46,543,146.72
  5. Step 5: Solve for x
    x = 46,543,146.72/5,705.60
  6. Step 6: Final answer
    x = 8,157.45

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Similar ratio
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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.