Home / 2,890.70-4,337.08-942.92

Finding the Fourth Proportional to 2,890.70, 4,337.08 and 942.92

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Solution

The fourth proportional to 2,890.70, 4,337.08 and 942.92 is: 1,414.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.70 : 4,337.08 = 942.92 : x
  2. Step 2: Convert to fraction form
    2,890.70/4,337.08 = 942.92/x
  3. Step 3: Cross multiply
    2,890.70x = 4,337.08 × 942.92
  4. Step 4: Simplify right side
    2,890.70x = 4,089,519.47
  5. Step 5: Solve for x
    x = 4,089,519.47/2,890.70
  6. Step 6: Final answer
    x = 1,414.72

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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.