Home / 2,890.10-4,333.14-1,428.92

Finding the Fourth Proportional to 2,890.10, 4,333.14 and 1,428.92

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Solution

The fourth proportional to 2,890.10, 4,333.14 and 1,428.92 is: 2,142.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.10 : 4,333.14 = 1,428.92 : x
  2. Step 2: Convert to fraction form
    2,890.10/4,333.14 = 1,428.92/x
  3. Step 3: Cross multiply
    2,890.10x = 4,333.14 × 1,428.92
  4. Step 4: Simplify right side
    2,890.10x = 6,191,710.41
  5. Step 5: Solve for x
    x = 6,191,710.41/2,890.10
  6. Step 6: Final answer
    x = 2,142.39

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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.