Home / 3,145.55-4,340.19-1,886.27

Finding the Fourth Proportional to 3,145.55, 4,340.19 and 1,886.27

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Solution

The fourth proportional to 3,145.55, 4,340.19 and 1,886.27 is: 2,602.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.55 : 4,340.19 = 1,886.27 : x
  2. Step 2: Convert to fraction form
    3,145.55/4,340.19 = 1,886.27/x
  3. Step 3: Cross multiply
    3,145.55x = 4,340.19 × 1,886.27
  4. Step 4: Simplify right side
    3,145.55x = 8,186,748.49
  5. Step 5: Solve for x
    x = 8,186,748.49/3,145.55
  6. Step 6: Final answer
    x = 2,602.65

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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.