Home / 2,940.44-4,054.96-1,985.45

Finding the Fourth Proportional to 2,940.44, 4,054.96 and 1,985.45

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Solution

The fourth proportional to 2,940.44, 4,054.96 and 1,985.45 is: 2,738.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.44 : 4,054.96 = 1,985.45 : x
  2. Step 2: Convert to fraction form
    2,940.44/4,054.96 = 1,985.45/x
  3. Step 3: Cross multiply
    2,940.44x = 4,054.96 × 1,985.45
  4. Step 4: Simplify right side
    2,940.44x = 8,050,925.51
  5. Step 5: Solve for x
    x = 8,050,925.51/2,940.44
  6. Step 6: Final answer
    x = 2,738.00

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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.