Home / 4,742.80-7,104.94-2,889.30

Finding the Fourth Proportional to 4,742.80, 7,104.94 and 2,889.30

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Solution

The fourth proportional to 4,742.80, 7,104.94 and 2,889.30 is: 4,328.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.80 : 7,104.94 = 2,889.30 : x
  2. Step 2: Convert to fraction form
    4,742.80/7,104.94 = 2,889.30/x
  3. Step 3: Cross multiply
    4,742.80x = 7,104.94 × 2,889.30
  4. Step 4: Simplify right side
    4,742.80x = 20,528,303.14
  5. Step 5: Solve for x
    x = 20,528,303.14/4,742.80
  6. Step 6: Final answer
    x = 4,328.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.