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Finding the Fourth Proportional to 2,530.45, 3,795.88 and 970.19

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Solution

The fourth proportional to 2,530.45, 3,795.88 and 970.19 is: 1,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.45 : 3,795.88 = 970.19 : x
  2. Step 2: Convert to fraction form
    2,530.45/3,795.88 = 970.19/x
  3. Step 3: Cross multiply
    2,530.45x = 3,795.88 × 970.19
  4. Step 4: Simplify right side
    2,530.45x = 3,682,703.41
  5. Step 5: Solve for x
    x = 3,682,703.41/2,530.45
  6. Step 6: Final answer
    x = 1,455.36

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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.