Home / 4,990.44-6,887.12-2,866.63

Finding the Fourth Proportional to 4,990.44, 6,887.12 and 2,866.63

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Solution

The fourth proportional to 4,990.44, 6,887.12 and 2,866.63 is: 3,956.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.44 : 6,887.12 = 2,866.63 : x
  2. Step 2: Convert to fraction form
    4,990.44/6,887.12 = 2,866.63/x
  3. Step 3: Cross multiply
    4,990.44x = 6,887.12 × 2,866.63
  4. Step 4: Simplify right side
    4,990.44x = 19,742,810.47
  5. Step 5: Solve for x
    x = 19,742,810.47/4,990.44
  6. Step 6: Final answer
    x = 3,956.13

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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.