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Finding the Fourth Proportional to 5,389.88, 8,085.29 and 1,494.28

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Solution

The fourth proportional to 5,389.88, 8,085.29 and 1,494.28 is: 2,241.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.88 : 8,085.29 = 1,494.28 : x
  2. Step 2: Convert to fraction form
    5,389.88/8,085.29 = 1,494.28/x
  3. Step 3: Cross multiply
    5,389.88x = 8,085.29 × 1,494.28
  4. Step 4: Simplify right side
    5,389.88x = 12,081,689.78
  5. Step 5: Solve for x
    x = 12,081,689.78/5,389.88
  6. Step 6: Final answer
    x = 2,241.55

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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.