Home / 3,110.15-4,291.88-1,782.93

Finding the Fourth Proportional to 3,110.15, 4,291.88 and 1,782.93

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Solution

The fourth proportional to 3,110.15, 4,291.88 and 1,782.93 is: 2,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.15 : 4,291.88 = 1,782.93 : x
  2. Step 2: Convert to fraction form
    3,110.15/4,291.88 = 1,782.93/x
  3. Step 3: Cross multiply
    3,110.15x = 4,291.88 × 1,782.93
  4. Step 4: Simplify right side
    3,110.15x = 7,652,121.61
  5. Step 5: Solve for x
    x = 7,652,121.61/3,110.15
  6. Step 6: Final answer
    x = 2,460.37

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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.