Home / 2,421.38-3,341.91-1,426.91

Finding the Fourth Proportional to 2,421.38, 3,341.91 and 1,426.91

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Solution

The fourth proportional to 2,421.38, 3,341.91 and 1,426.91 is: 1,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.38 : 3,341.91 = 1,426.91 : x
  2. Step 2: Convert to fraction form
    2,421.38/3,341.91 = 1,426.91/x
  3. Step 3: Cross multiply
    2,421.38x = 3,341.91 × 1,426.91
  4. Step 4: Simplify right side
    2,421.38x = 4,768,588.09
  5. Step 5: Solve for x
    x = 4,768,588.09/2,421.38
  6. Step 6: Final answer
    x = 1,969.37

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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.