Home / 4,987.81-6,883.19-2,999.50

Finding the Fourth Proportional to 4,987.81, 6,883.19 and 2,999.50

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Solution

The fourth proportional to 4,987.81, 6,883.19 and 2,999.50 is: 4,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.81 : 6,883.19 = 2,999.50 : x
  2. Step 2: Convert to fraction form
    4,987.81/6,883.19 = 2,999.50/x
  3. Step 3: Cross multiply
    4,987.81x = 6,883.19 × 2,999.50
  4. Step 4: Simplify right side
    4,987.81x = 20,646,128.41
  5. Step 5: Solve for x
    x = 20,646,128.41/4,987.81
  6. Step 6: Final answer
    x = 4,139.32

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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.