Home / 2,148.73-2,964.35-1,431.23

Finding the Fourth Proportional to 2,148.73, 2,964.35 and 1,431.23

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Solution

The fourth proportional to 2,148.73, 2,964.35 and 1,431.23 is: 1,974.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.73 : 2,964.35 = 1,431.23 : x
  2. Step 2: Convert to fraction form
    2,148.73/2,964.35 = 1,431.23/x
  3. Step 3: Cross multiply
    2,148.73x = 2,964.35 × 1,431.23
  4. Step 4: Simplify right side
    2,148.73x = 4,242,677.26
  5. Step 5: Solve for x
    x = 4,242,677.26/2,148.73
  6. Step 6: Final answer
    x = 1,974.51

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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.