Home / 2,421.66-3,341.79-1,426.98

Finding the Fourth Proportional to 2,421.66, 3,341.79 and 1,426.98

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Solution

The fourth proportional to 2,421.66, 3,341.79 and 1,426.98 is: 1,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.66 : 3,341.79 = 1,426.98 : x
  2. Step 2: Convert to fraction form
    2,421.66/3,341.79 = 1,426.98/x
  3. Step 3: Cross multiply
    2,421.66x = 3,341.79 × 1,426.98
  4. Step 4: Simplify right side
    2,421.66x = 4,768,667.49
  5. Step 5: Solve for x
    x = 4,768,667.49/2,421.66
  6. Step 6: Final answer
    x = 1,969.17

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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.