Home / 5,811.60-8,717.40-5,725.20

Finding the Fourth Proportional to 5,811.60, 8,717.40 and 5,725.20

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Solution

The fourth proportional to 5,811.60, 8,717.40 and 5,725.20 is: 8,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.60 : 8,717.40 = 5,725.20 : x
  2. Step 2: Convert to fraction form
    5,811.60/8,717.40 = 5,725.20/x
  3. Step 3: Cross multiply
    5,811.60x = 8,717.40 × 5,725.20
  4. Step 4: Simplify right side
    5,811.60x = 49,908,858.48
  5. Step 5: Solve for x
    x = 49,908,858.48/5,811.60
  6. Step 6: Final answer
    x = 8,587.80

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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.