Home / 3,439.94-5,159.91-1,386.50

Finding the Fourth Proportional to 3,439.94, 5,159.91 and 1,386.50

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Solution

The fourth proportional to 3,439.94, 5,159.91 and 1,386.50 is: 2,079.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.94 : 5,159.91 = 1,386.50 : x
  2. Step 2: Convert to fraction form
    3,439.94/5,159.91 = 1,386.50/x
  3. Step 3: Cross multiply
    3,439.94x = 5,159.91 × 1,386.50
  4. Step 4: Simplify right side
    3,439.94x = 7,154,215.22
  5. Step 5: Solve for x
    x = 7,154,215.22/3,439.94
  6. Step 6: Final answer
    x = 2,079.75

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Similar ratio
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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.