Home / 1,719.47-2,366.35-1,645.67

Finding the Fourth Proportional to 1,719.47, 2,366.35 and 1,645.67

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Solution

The fourth proportional to 1,719.47, 2,366.35 and 1,645.67 is: 2,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.47 : 2,366.35 = 1,645.67 : x
  2. Step 2: Convert to fraction form
    1,719.47/2,366.35 = 1,645.67/x
  3. Step 3: Cross multiply
    1,719.47x = 2,366.35 × 1,645.67
  4. Step 4: Simplify right side
    1,719.47x = 3,894,233.01
  5. Step 5: Solve for x
    x = 3,894,233.01/1,719.47
  6. Step 6: Final answer
    x = 2,264.78

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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.