Home / 5,788.20-8,681.40-1,627.80

Finding the Fourth Proportional to 5,788.20, 8,681.40 and 1,627.80

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Solution

The fourth proportional to 5,788.20, 8,681.40 and 1,627.80 is: 2,441.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.20 : 8,681.40 = 1,627.80 : x
  2. Step 2: Convert to fraction form
    5,788.20/8,681.40 = 1,627.80/x
  3. Step 3: Cross multiply
    5,788.20x = 8,681.40 × 1,627.80
  4. Step 4: Simplify right side
    5,788.20x = 14,131,582.92
  5. Step 5: Solve for x
    x = 14,131,582.92/5,788.20
  6. Step 6: Final answer
    x = 2,441.45

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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.