Home / 2,140.15-2,952.38-1,343.08

Finding the Fourth Proportional to 2,140.15, 2,952.38 and 1,343.08

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Solution

The fourth proportional to 2,140.15, 2,952.38 and 1,343.08 is: 1,852.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.15 : 2,952.38 = 1,343.08 : x
  2. Step 2: Convert to fraction form
    2,140.15/2,952.38 = 1,343.08/x
  3. Step 3: Cross multiply
    2,140.15x = 2,952.38 × 1,343.08
  4. Step 4: Simplify right side
    2,140.15x = 3,965,282.53
  5. Step 5: Solve for x
    x = 3,965,282.53/2,140.15
  6. Step 6: Final answer
    x = 1,852.81

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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.