Home / 4,752.14-7,129.43-1,977.89

Finding the Fourth Proportional to 4,752.14, 7,129.43 and 1,977.89

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Solution

The fourth proportional to 4,752.14, 7,129.43 and 1,977.89 is: 2,967.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,752.14 : 7,129.43 = 1,977.89 : x
  2. Step 2: Convert to fraction form
    4,752.14/7,129.43 = 1,977.89/x
  3. Step 3: Cross multiply
    4,752.14x = 7,129.43 × 1,977.89
  4. Step 4: Simplify right side
    4,752.14x = 14,101,218.41
  5. Step 5: Solve for x
    x = 14,101,218.41/4,752.14
  6. Step 6: Final answer
    x = 2,967.34

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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.