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Finding the Fourth Proportional to 5,389.36, 8,074.68 and 3,746.98

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Solution

The fourth proportional to 5,389.36, 8,074.68 and 3,746.98 is: 5,613.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.36 : 8,074.68 = 3,746.98 : x
  2. Step 2: Convert to fraction form
    5,389.36/8,074.68 = 3,746.98/x
  3. Step 3: Cross multiply
    5,389.36x = 8,074.68 × 3,746.98
  4. Step 4: Simplify right side
    5,389.36x = 30,255,664.47
  5. Step 5: Solve for x
    x = 30,255,664.47/5,389.36
  6. Step 6: Final answer
    x = 5,613.96

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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.