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Finding the Fourth Proportional to 3,880.03, 5,820.47 and 1,246.93

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Solution

The fourth proportional to 3,880.03, 5,820.47 and 1,246.93 is: 1,870.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.03 : 5,820.47 = 1,246.93 : x
  2. Step 2: Convert to fraction form
    3,880.03/5,820.47 = 1,246.93/x
  3. Step 3: Cross multiply
    3,880.03x = 5,820.47 × 1,246.93
  4. Step 4: Simplify right side
    3,880.03x = 7,257,718.66
  5. Step 5: Solve for x
    x = 7,257,718.66/3,880.03
  6. Step 6: Final answer
    x = 1,870.53

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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.