Home / 2,426.81-3,347.87-1,431.54

Finding the Fourth Proportional to 2,426.81, 3,347.87 and 1,431.54

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Solution

The fourth proportional to 2,426.81, 3,347.87 and 1,431.54 is: 1,974.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.81 : 3,347.87 = 1,431.54 : x
  2. Step 2: Convert to fraction form
    2,426.81/3,347.87 = 1,431.54/x
  3. Step 3: Cross multiply
    2,426.81x = 3,347.87 × 1,431.54
  4. Step 4: Simplify right side
    2,426.81x = 4,792,602.66
  5. Step 5: Solve for x
    x = 4,792,602.66/2,426.81
  6. Step 6: Final answer
    x = 1,974.86

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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.