Home / 1,818.23-2,508.87-1,021.59

Finding the Fourth Proportional to 1,818.23, 2,508.87 and 1,021.59

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Solution

The fourth proportional to 1,818.23, 2,508.87 and 1,021.59 is: 1,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.23 : 2,508.87 = 1,021.59 : x
  2. Step 2: Convert to fraction form
    1,818.23/2,508.87 = 1,021.59/x
  3. Step 3: Cross multiply
    1,818.23x = 2,508.87 × 1,021.59
  4. Step 4: Simplify right side
    1,818.23x = 2,563,036.50
  5. Step 5: Solve for x
    x = 2,563,036.50/1,818.23
  6. Step 6: Final answer
    x = 1,409.64

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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.