Home / 1,938.78-2,907.18-1,014.84

Finding the Fourth Proportional to 1,938.78, 2,907.18 and 1,014.84

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Solution

The fourth proportional to 1,938.78, 2,907.18 and 1,014.84 is: 1,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.78 : 2,907.18 = 1,014.84 : x
  2. Step 2: Convert to fraction form
    1,938.78/2,907.18 = 1,014.84/x
  3. Step 3: Cross multiply
    1,938.78x = 2,907.18 × 1,014.84
  4. Step 4: Simplify right side
    1,938.78x = 2,950,322.55
  5. Step 5: Solve for x
    x = 2,950,322.55/1,938.78
  6. Step 6: Final answer
    x = 1,521.74

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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.