Home / 3,389.17-5,081.91-1,440.31

Finding the Fourth Proportional to 3,389.17, 5,081.91 and 1,440.31

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Solution

The fourth proportional to 3,389.17, 5,081.91 and 1,440.31 is: 2,159.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.17 : 5,081.91 = 1,440.31 : x
  2. Step 2: Convert to fraction form
    3,389.17/5,081.91 = 1,440.31/x
  3. Step 3: Cross multiply
    3,389.17x = 5,081.91 × 1,440.31
  4. Step 4: Simplify right side
    3,389.17x = 7,319,525.79
  5. Step 5: Solve for x
    x = 7,319,525.79/3,389.17
  6. Step 6: Final answer
    x = 2,159.68

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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.