Home / 1,914-2,639.88-1,325.52

Finding the Fourth Proportional to 1,914, 2,639.88 and 1,325.52

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Solution

The fourth proportional to 1,914, 2,639.88 and 1,325.52 is: 1,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914 : 2,639.88 = 1,325.52 : x
  2. Step 2: Convert to fraction form
    1,914/2,639.88 = 1,325.52/x
  3. Step 3: Cross multiply
    1,914x = 2,639.88 × 1,325.52
  4. Step 4: Simplify right side
    1,914x = 3,499,213.74
  5. Step 5: Solve for x
    x = 3,499,213.74/1,914
  6. Step 6: Final answer
    x = 1,828.22

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Why These Related Problems?

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