Home / 1,275.93-1,910.66-1,018.89

Finding the Fourth Proportional to 1,275.93, 1,910.66 and 1,018.89

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Solution

The fourth proportional to 1,275.93, 1,910.66 and 1,018.89 is: 1,525.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275.93 : 1,910.66 = 1,018.89 : x
  2. Step 2: Convert to fraction form
    1,275.93/1,910.66 = 1,018.89/x
  3. Step 3: Cross multiply
    1,275.93x = 1,910.66 × 1,018.89
  4. Step 4: Simplify right side
    1,275.93x = 1,946,754.60
  5. Step 5: Solve for x
    x = 1,946,754.60/1,275.93
  6. Step 6: Final answer
    x = 1,525.75

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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.