Home / 4,159.94-6,239.48-1,386.31

Finding the Fourth Proportional to 4,159.94, 6,239.48 and 1,386.31

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Solution

The fourth proportional to 4,159.94, 6,239.48 and 1,386.31 is: 2,079.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.94 : 6,239.48 = 1,386.31 : x
  2. Step 2: Convert to fraction form
    4,159.94/6,239.48 = 1,386.31/x
  3. Step 3: Cross multiply
    4,159.94x = 6,239.48 × 1,386.31
  4. Step 4: Simplify right side
    4,159.94x = 8,649,872.58
  5. Step 5: Solve for x
    x = 8,649,872.58/4,159.94
  6. Step 6: Final answer
    x = 2,079.33

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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.