Home / 5,222.60-7,830.42-3,137.40

Finding the Fourth Proportional to 5,222.60, 7,830.42 and 3,137.40

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Solution

The fourth proportional to 5,222.60, 7,830.42 and 3,137.40 is: 4,704.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.60 : 7,830.42 = 3,137.40 : x
  2. Step 2: Convert to fraction form
    5,222.60/7,830.42 = 3,137.40/x
  3. Step 3: Cross multiply
    5,222.60x = 7,830.42 × 3,137.40
  4. Step 4: Simplify right side
    5,222.60x = 24,567,159.71
  5. Step 5: Solve for x
    x = 24,567,159.71/5,222.60
  6. Step 6: Final answer
    x = 4,704.01

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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.