Home / 1,579.93-2,182.05-1,020.74

Finding the Fourth Proportional to 1,579.93, 2,182.05 and 1,020.74

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Solution

The fourth proportional to 1,579.93, 2,182.05 and 1,020.74 is: 1,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.93 : 2,182.05 = 1,020.74 : x
  2. Step 2: Convert to fraction form
    1,579.93/2,182.05 = 1,020.74/x
  3. Step 3: Cross multiply
    1,579.93x = 2,182.05 × 1,020.74
  4. Step 4: Simplify right side
    1,579.93x = 2,227,294.81
  5. Step 5: Solve for x
    x = 2,227,294.81/1,579.93
  6. Step 6: Final answer
    x = 1,409.74

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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.