Home / 4,970.60-7,455.90-2,666.60

Finding the Fourth Proportional to 4,970.60, 7,455.90 and 2,666.60

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Solution

The fourth proportional to 4,970.60, 7,455.90 and 2,666.60 is: 3,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.60 : 7,455.90 = 2,666.60 : x
  2. Step 2: Convert to fraction form
    4,970.60/7,455.90 = 2,666.60/x
  3. Step 3: Cross multiply
    4,970.60x = 7,455.90 × 2,666.60
  4. Step 4: Simplify right side
    4,970.60x = 19,881,902.94
  5. Step 5: Solve for x
    x = 19,881,902.94/4,970.60
  6. Step 6: Final answer
    x = 3,999.90

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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.