Home / 5,311.56-7,970.40-2,023.80

Finding the Fourth Proportional to 5,311.56, 7,970.40 and 2,023.80

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Solution

The fourth proportional to 5,311.56, 7,970.40 and 2,023.80 is: 3,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.56 : 7,970.40 = 2,023.80 : x
  2. Step 2: Convert to fraction form
    5,311.56/7,970.40 = 2,023.80/x
  3. Step 3: Cross multiply
    5,311.56x = 7,970.40 × 2,023.80
  4. Step 4: Simplify right side
    5,311.56x = 16,130,495.52
  5. Step 5: Solve for x
    x = 16,130,495.52/5,311.56
  6. Step 6: Final answer
    x = 3,036.87

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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.