Home / 1,265.15-1,898.64-1,019.12

Finding the Fourth Proportional to 1,265.15, 1,898.64 and 1,019.12

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Solution

The fourth proportional to 1,265.15, 1,898.64 and 1,019.12 is: 1,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.15 : 1,898.64 = 1,019.12 : x
  2. Step 2: Convert to fraction form
    1,265.15/1,898.64 = 1,019.12/x
  3. Step 3: Cross multiply
    1,265.15x = 1,898.64 × 1,019.12
  4. Step 4: Simplify right side
    1,265.15x = 1,934,932.50
  5. Step 5: Solve for x
    x = 1,934,932.50/1,265.15
  6. Step 6: Final answer
    x = 1,529.41

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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.