Home / 3,178.35-4,386.87-1,852.29

Finding the Fourth Proportional to 3,178.35, 4,386.87 and 1,852.29

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Solution

The fourth proportional to 3,178.35, 4,386.87 and 1,852.29 is: 2,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.35 : 4,386.87 = 1,852.29 : x
  2. Step 2: Convert to fraction form
    3,178.35/4,386.87 = 1,852.29/x
  3. Step 3: Cross multiply
    3,178.35x = 4,386.87 × 1,852.29
  4. Step 4: Simplify right side
    3,178.35x = 8,125,755.43
  5. Step 5: Solve for x
    x = 8,125,755.43/3,178.35
  6. Step 6: Final answer
    x = 2,556.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.