Home / 5,389.70-8,071.57-3,653.06

Finding the Fourth Proportional to 5,389.70, 8,071.57 and 3,653.06

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Solution

The fourth proportional to 5,389.70, 8,071.57 and 3,653.06 is: 5,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.70 : 8,071.57 = 3,653.06 : x
  2. Step 2: Convert to fraction form
    5,389.70/8,071.57 = 3,653.06/x
  3. Step 3: Cross multiply
    5,389.70x = 8,071.57 × 3,653.06
  4. Step 4: Simplify right side
    5,389.70x = 29,485,929.50
  5. Step 5: Solve for x
    x = 29,485,929.50/5,389.70
  6. Step 6: Final answer
    x = 5,470.79

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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.