Home / 1,818.42-2,509.70-1,072.46

Finding the Fourth Proportional to 1,818.42, 2,509.70 and 1,072.46

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Solution

The fourth proportional to 1,818.42, 2,509.70 and 1,072.46 is: 1,480.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.42 : 2,509.70 = 1,072.46 : x
  2. Step 2: Convert to fraction form
    1,818.42/2,509.70 = 1,072.46/x
  3. Step 3: Cross multiply
    1,818.42x = 2,509.70 × 1,072.46
  4. Step 4: Simplify right side
    1,818.42x = 2,691,552.41
  5. Step 5: Solve for x
    x = 2,691,552.41/1,818.42
  6. Step 6: Final answer
    x = 1,480.16

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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.