Home / 1,709.43-2,560.80-1,248.33

Finding the Fourth Proportional to 1,709.43, 2,560.80 and 1,248.33

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Solution

The fourth proportional to 1,709.43, 2,560.80 and 1,248.33 is: 1,870.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.43 : 2,560.80 = 1,248.33 : x
  2. Step 2: Convert to fraction form
    1,709.43/2,560.80 = 1,248.33/x
  3. Step 3: Cross multiply
    1,709.43x = 2,560.80 × 1,248.33
  4. Step 4: Simplify right side
    1,709.43x = 3,196,723.46
  5. Step 5: Solve for x
    x = 3,196,723.46/1,709.43
  6. Step 6: Final answer
    x = 1,870.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.