Home / 4,970.67-6,859.35-2,980.05

Finding the Fourth Proportional to 4,970.67, 6,859.35 and 2,980.05

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Solution

The fourth proportional to 4,970.67, 6,859.35 and 2,980.05 is: 4,112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.67 : 6,859.35 = 2,980.05 : x
  2. Step 2: Convert to fraction form
    4,970.67/6,859.35 = 2,980.05/x
  3. Step 3: Cross multiply
    4,970.67x = 6,859.35 × 2,980.05
  4. Step 4: Simplify right side
    4,970.67x = 20,441,205.97
  5. Step 5: Solve for x
    x = 20,441,205.97/4,970.67
  6. Step 6: Final answer
    x = 4,112.36

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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.