Home / 6,389.88-9,587.20-2,878.84

Finding the Fourth Proportional to 6,389.88, 9,587.20 and 2,878.84

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Solution

The fourth proportional to 6,389.88, 9,587.20 and 2,878.84 is: 4,319.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,389.88 : 9,587.20 = 2,878.84 : x
  2. Step 2: Convert to fraction form
    6,389.88/9,587.20 = 2,878.84/x
  3. Step 3: Cross multiply
    6,389.88x = 9,587.20 × 2,878.84
  4. Step 4: Simplify right side
    6,389.88x = 27,599,966.91
  5. Step 5: Solve for x
    x = 27,599,966.91/6,389.88
  6. Step 6: Final answer
    x = 4,319.32

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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.