Home / 2,486.93-3,430.98-1,603.25

Finding the Fourth Proportional to 2,486.93, 3,430.98 and 1,603.25

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Solution

The fourth proportional to 2,486.93, 3,430.98 and 1,603.25 is: 2,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.93 : 3,430.98 = 1,603.25 : x
  2. Step 2: Convert to fraction form
    2,486.93/3,430.98 = 1,603.25/x
  3. Step 3: Cross multiply
    2,486.93x = 3,430.98 × 1,603.25
  4. Step 4: Simplify right side
    2,486.93x = 5,500,718.69
  5. Step 5: Solve for x
    x = 5,500,718.69/2,486.93
  6. Step 6: Final answer
    x = 2,211.85

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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.