Home / 4,705.45-7,059.90-1,931.38

Finding the Fourth Proportional to 4,705.45, 7,059.90 and 1,931.38

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Solution

The fourth proportional to 4,705.45, 7,059.90 and 1,931.38 is: 2,897.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,705.45 : 7,059.90 = 1,931.38 : x
  2. Step 2: Convert to fraction form
    4,705.45/7,059.90 = 1,931.38/x
  3. Step 3: Cross multiply
    4,705.45x = 7,059.90 × 1,931.38
  4. Step 4: Simplify right side
    4,705.45x = 13,635,332.01
  5. Step 5: Solve for x
    x = 13,635,332.01/4,705.45
  6. Step 6: Final answer
    x = 2,897.78

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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.