Home / 1,719.96-2,373.18-1,021.56

Finding the Fourth Proportional to 1,719.96, 2,373.18 and 1,021.56

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Solution

The fourth proportional to 1,719.96, 2,373.18 and 1,021.56 is: 1,409.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719.96 : 2,373.18 = 1,021.56 : x
  2. Step 2: Convert to fraction form
    1,719.96/2,373.18 = 1,021.56/x
  3. Step 3: Cross multiply
    1,719.96x = 2,373.18 × 1,021.56
  4. Step 4: Simplify right side
    1,719.96x = 2,424,345.76
  5. Step 5: Solve for x
    x = 2,424,345.76/1,719.96
  6. Step 6: Final answer
    x = 1,409.54

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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.