Home / 1,719.35-2,580.26-746.15

Finding the Fourth Proportional to 1,719.35, 2,580.26 and 746.15

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Solution

The fourth proportional to 1,719.35, 2,580.26 and 746.15 is: 1,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.35 : 2,580.26 = 746.15 : x
  2. Step 2: Convert to fraction form
    1,719.35/2,580.26 = 746.15/x
  3. Step 3: Cross multiply
    1,719.35x = 2,580.26 × 746.15
  4. Step 4: Simplify right side
    1,719.35x = 1,925,257.27
  5. Step 5: Solve for x
    x = 1,925,257.27/1,719.35
  6. Step 6: Final answer
    x = 1,119.76

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1.5x scale

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.