Home / 2,421.74-3,340.77-1,426.97

Finding the Fourth Proportional to 2,421.74, 3,340.77 and 1,426.97

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Solution

The fourth proportional to 2,421.74, 3,340.77 and 1,426.97 is: 1,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.74 : 3,340.77 = 1,426.97 : x
  2. Step 2: Convert to fraction form
    2,421.74/3,340.77 = 1,426.97/x
  3. Step 3: Cross multiply
    2,421.74x = 3,340.77 × 1,426.97
  4. Step 4: Simplify right side
    2,421.74x = 4,767,178.57
  5. Step 5: Solve for x
    x = 4,767,178.57/2,421.74
  6. Step 6: Final answer
    x = 1,968.49

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Half scale
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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.