Home / 8,525.48-12,788.28-2,978.84

Finding the Fourth Proportional to 8,525.48, 12,788.28 and 2,978.84

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Solution

The fourth proportional to 8,525.48, 12,788.28 and 2,978.84 is: 4,468.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.48 : 12,788.28 = 2,978.84 : x
  2. Step 2: Convert to fraction form
    8,525.48/12,788.28 = 2,978.84/x
  3. Step 3: Cross multiply
    8,525.48x = 12,788.28 × 2,978.84
  4. Step 4: Simplify right side
    8,525.48x = 38,094,240.00
  5. Step 5: Solve for x
    x = 38,094,240.00/8,525.48
  6. Step 6: Final answer
    x = 4,468.28

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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.