Home / 4,756.30-7,134.45-2,123.80

Finding the Fourth Proportional to 4,756.30, 7,134.45 and 2,123.80

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Solution

The fourth proportional to 4,756.30, 7,134.45 and 2,123.80 is: 3,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,756.30 : 7,134.45 = 2,123.80 : x
  2. Step 2: Convert to fraction form
    4,756.30/7,134.45 = 2,123.80/x
  3. Step 3: Cross multiply
    4,756.30x = 7,134.45 × 2,123.80
  4. Step 4: Simplify right side
    4,756.30x = 15,152,144.91
  5. Step 5: Solve for x
    x = 15,152,144.91/4,756.30
  6. Step 6: Final answer
    x = 3,185.70

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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.