Home / 2,890.56-4,336.38-1,426.08

Finding the Fourth Proportional to 2,890.56, 4,336.38 and 1,426.08

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Solution

The fourth proportional to 2,890.56, 4,336.38 and 1,426.08 is: 2,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.56 : 4,336.38 = 1,426.08 : x
  2. Step 2: Convert to fraction form
    2,890.56/4,336.38 = 1,426.08/x
  3. Step 3: Cross multiply
    2,890.56x = 4,336.38 × 1,426.08
  4. Step 4: Simplify right side
    2,890.56x = 6,184,024.79
  5. Step 5: Solve for x
    x = 6,184,024.79/2,890.56
  6. Step 6: Final answer
    x = 2,139.39

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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.