Home / 3,014.78-4,520.47-1,257.89

Finding the Fourth Proportional to 3,014.78, 4,520.47 and 1,257.89

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Solution

The fourth proportional to 3,014.78, 4,520.47 and 1,257.89 is: 1,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.78 : 4,520.47 = 1,257.89 : x
  2. Step 2: Convert to fraction form
    3,014.78/4,520.47 = 1,257.89/x
  3. Step 3: Cross multiply
    3,014.78x = 4,520.47 × 1,257.89
  4. Step 4: Simplify right side
    3,014.78x = 5,686,254.01
  5. Step 5: Solve for x
    x = 5,686,254.01/3,014.78
  6. Step 6: Final answer
    x = 1,886.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.