Home / 6,719.18-10,078.98-1,788.80

Finding the Fourth Proportional to 6,719.18, 10,078.98 and 1,788.80

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Solution

The fourth proportional to 6,719.18, 10,078.98 and 1,788.80 is: 2,683.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.18 : 10,078.98 = 1,788.80 : x
  2. Step 2: Convert to fraction form
    6,719.18/10,078.98 = 1,788.80/x
  3. Step 3: Cross multiply
    6,719.18x = 10,078.98 × 1,788.80
  4. Step 4: Simplify right side
    6,719.18x = 18,029,279.42
  5. Step 5: Solve for x
    x = 18,029,279.42/6,719.18
  6. Step 6: Final answer
    x = 2,683.26

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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.