Home / 4,289.70-6,434.55-3,123.30

Finding the Fourth Proportional to 4,289.70, 6,434.55 and 3,123.30

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Solution

The fourth proportional to 4,289.70, 6,434.55 and 3,123.30 is: 4,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.70 : 6,434.55 = 3,123.30 : x
  2. Step 2: Convert to fraction form
    4,289.70/6,434.55 = 3,123.30/x
  3. Step 3: Cross multiply
    4,289.70x = 6,434.55 × 3,123.30
  4. Step 4: Simplify right side
    4,289.70x = 20,097,030.02
  5. Step 5: Solve for x
    x = 20,097,030.02/4,289.70
  6. Step 6: Final answer
    x = 4,684.95

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Similar ratio
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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.