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Finding the Fourth Proportional to 2,925.86, 4,039.02 and 1,865.09

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Solution

The fourth proportional to 2,925.86, 4,039.02 and 1,865.09 is: 2,574.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,925.86 : 4,039.02 = 1,865.09 : x
  2. Step 2: Convert to fraction form
    2,925.86/4,039.02 = 1,865.09/x
  3. Step 3: Cross multiply
    2,925.86x = 4,039.02 × 1,865.09
  4. Step 4: Simplify right side
    2,925.86x = 7,533,115.62
  5. Step 5: Solve for x
    x = 7,533,115.62/2,925.86
  6. Step 6: Final answer
    x = 2,574.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.