Home / 2,475.70-3,413.73-1,690.18

Finding the Fourth Proportional to 2,475.70, 3,413.73 and 1,690.18

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Solution

The fourth proportional to 2,475.70, 3,413.73 and 1,690.18 is: 2,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.70 : 3,413.73 = 1,690.18 : x
  2. Step 2: Convert to fraction form
    2,475.70/3,413.73 = 1,690.18/x
  3. Step 3: Cross multiply
    2,475.70x = 3,413.73 × 1,690.18
  4. Step 4: Simplify right side
    2,475.70x = 5,769,818.17
  5. Step 5: Solve for x
    x = 5,769,818.17/2,475.70
  6. Step 6: Final answer
    x = 2,330.58

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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.