Home / 1,818.23-2,508.47-1,071.92

Finding the Fourth Proportional to 1,818.23, 2,508.47 and 1,071.92

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Solution

The fourth proportional to 1,818.23, 2,508.47 and 1,071.92 is: 1,478.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.23 : 2,508.47 = 1,071.92 : x
  2. Step 2: Convert to fraction form
    1,818.23/2,508.47 = 1,071.92/x
  3. Step 3: Cross multiply
    1,818.23x = 2,508.47 × 1,071.92
  4. Step 4: Simplify right side
    1,818.23x = 2,688,861.26
  5. Step 5: Solve for x
    x = 2,688,861.26/1,818.23
  6. Step 6: Final answer
    x = 1,478.84

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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.