Home / 1,723.12-2,580.66-1,259.74

Finding the Fourth Proportional to 1,723.12, 2,580.66 and 1,259.74

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Solution

The fourth proportional to 1,723.12, 2,580.66 and 1,259.74 is: 1,886.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,723.12 : 2,580.66 = 1,259.74 : x
  2. Step 2: Convert to fraction form
    1,723.12/2,580.66 = 1,259.74/x
  3. Step 3: Cross multiply
    1,723.12x = 2,580.66 × 1,259.74
  4. Step 4: Simplify right side
    1,723.12x = 3,250,960.63
  5. Step 5: Solve for x
    x = 3,250,960.63/1,723.12
  6. Step 6: Final answer
    x = 1,886.67

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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.