Home / 1,749.65-2,413.90-1,120.28

Finding the Fourth Proportional to 1,749.65, 2,413.90 and 1,120.28

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Solution

The fourth proportional to 1,749.65, 2,413.90 and 1,120.28 is: 1,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,749.65 : 2,413.90 = 1,120.28 : x
  2. Step 2: Convert to fraction form
    1,749.65/2,413.90 = 1,120.28/x
  3. Step 3: Cross multiply
    1,749.65x = 2,413.90 × 1,120.28
  4. Step 4: Simplify right side
    1,749.65x = 2,704,243.89
  5. Step 5: Solve for x
    x = 2,704,243.89/1,749.65
  6. Step 6: Final answer
    x = 1,545.59

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1.5x scale

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.