Home / 2,141.42-2,955.65-1,394.08

Finding the Fourth Proportional to 2,141.42, 2,955.65 and 1,394.08

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Solution

The fourth proportional to 2,141.42, 2,955.65 and 1,394.08 is: 1,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.42 : 2,955.65 = 1,394.08 : x
  2. Step 2: Convert to fraction form
    2,141.42/2,955.65 = 1,394.08/x
  3. Step 3: Cross multiply
    2,141.42x = 2,955.65 × 1,394.08
  4. Step 4: Simplify right side
    2,141.42x = 4,120,408.65
  5. Step 5: Solve for x
    x = 4,120,408.65/2,141.42
  6. Step 6: Final answer
    x = 1,924.15

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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.