Home / 3,145.86-4,343.32-1,952.12

Finding the Fourth Proportional to 3,145.86, 4,343.32 and 1,952.12

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Solution

The fourth proportional to 3,145.86, 4,343.32 and 1,952.12 is: 2,695.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.86 : 4,343.32 = 1,952.12 : x
  2. Step 2: Convert to fraction form
    3,145.86/4,343.32 = 1,952.12/x
  3. Step 3: Cross multiply
    3,145.86x = 4,343.32 × 1,952.12
  4. Step 4: Simplify right side
    3,145.86x = 8,478,681.84
  5. Step 5: Solve for x
    x = 8,478,681.84/3,145.86
  6. Step 6: Final answer
    x = 2,695.19

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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.