Home / 5,725.84-8,588.76-5,420.20

Finding the Fourth Proportional to 5,725.84, 8,588.76 and 5,420.20

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Solution

The fourth proportional to 5,725.84, 8,588.76 and 5,420.20 is: 8,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,725.84 : 8,588.76 = 5,420.20 : x
  2. Step 2: Convert to fraction form
    5,725.84/8,588.76 = 5,420.20/x
  3. Step 3: Cross multiply
    5,725.84x = 8,588.76 × 5,420.20
  4. Step 4: Simplify right side
    5,725.84x = 46,552,796.95
  5. Step 5: Solve for x
    x = 46,552,796.95/5,725.84
  6. Step 6: Final answer
    x = 8,130.30

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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.