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Finding the Fourth Proportional to 5,788.86, 8,683.28 and 1,406.28

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Solution

The fourth proportional to 5,788.86, 8,683.28 and 1,406.28 is: 2,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.86 : 8,683.28 = 1,406.28 : x
  2. Step 2: Convert to fraction form
    5,788.86/8,683.28 = 1,406.28/x
  3. Step 3: Cross multiply
    5,788.86x = 8,683.28 × 1,406.28
  4. Step 4: Simplify right side
    5,788.86x = 12,211,146.46
  5. Step 5: Solve for x
    x = 12,211,146.46/5,788.86
  6. Step 6: Final answer
    x = 2,109.42

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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.