Home / 2,890.46-4,335.56-1,916.30

Finding the Fourth Proportional to 2,890.46, 4,335.56 and 1,916.30

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Solution

The fourth proportional to 2,890.46, 4,335.56 and 1,916.30 is: 2,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.46 : 4,335.56 = 1,916.30 : x
  2. Step 2: Convert to fraction form
    2,890.46/4,335.56 = 1,916.30/x
  3. Step 3: Cross multiply
    2,890.46x = 4,335.56 × 1,916.30
  4. Step 4: Simplify right side
    2,890.46x = 8,308,233.63
  5. Step 5: Solve for x
    x = 8,308,233.63/2,890.46
  6. Step 6: Final answer
    x = 2,874.36

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1.5x scale

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.