Home / 1,818.08-2,508.48-1,072.16

Finding the Fourth Proportional to 1,818.08, 2,508.48 and 1,072.16

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Solution

The fourth proportional to 1,818.08, 2,508.48 and 1,072.16 is: 1,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.08 : 2,508.48 = 1,072.16 : x
  2. Step 2: Convert to fraction form
    1,818.08/2,508.48 = 1,072.16/x
  3. Step 3: Cross multiply
    1,818.08x = 2,508.48 × 1,072.16
  4. Step 4: Simplify right side
    1,818.08x = 2,689,491.92
  5. Step 5: Solve for x
    x = 2,689,491.92/1,818.08
  6. Step 6: Final answer
    x = 1,479.30

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1.5x scale

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.