Home / 4,969.86-6,858.45-3,106.50

Finding the Fourth Proportional to 4,969.86, 6,858.45 and 3,106.50

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Solution

The fourth proportional to 4,969.86, 6,858.45 and 3,106.50 is: 4,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,969.86 : 6,858.45 = 3,106.50 : x
  2. Step 2: Convert to fraction form
    4,969.86/6,858.45 = 3,106.50/x
  3. Step 3: Cross multiply
    4,969.86x = 6,858.45 × 3,106.50
  4. Step 4: Simplify right side
    4,969.86x = 21,305,774.93
  5. Step 5: Solve for x
    x = 21,305,774.93/4,969.86
  6. Step 6: Final answer
    x = 4,287.00

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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.