Home / 3,005.50-4,147.30-1,886.08

Finding the Fourth Proportional to 3,005.50, 4,147.30 and 1,886.08

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Solution

The fourth proportional to 3,005.50, 4,147.30 and 1,886.08 is: 2,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.50 : 4,147.30 = 1,886.08 : x
  2. Step 2: Convert to fraction form
    3,005.50/4,147.30 = 1,886.08/x
  3. Step 3: Cross multiply
    3,005.50x = 4,147.30 × 1,886.08
  4. Step 4: Simplify right side
    3,005.50x = 7,822,139.58
  5. Step 5: Solve for x
    x = 7,822,139.58/3,005.50
  6. Step 6: Final answer
    x = 2,602.61

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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.