Home / 4,771.90-7,159.20-1,485.19

Finding the Fourth Proportional to 4,771.90, 7,159.20 and 1,485.19

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Solution

The fourth proportional to 4,771.90, 7,159.20 and 1,485.19 is: 2,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,771.90 : 7,159.20 = 1,485.19 : x
  2. Step 2: Convert to fraction form
    4,771.90/7,159.20 = 1,485.19/x
  3. Step 3: Cross multiply
    4,771.90x = 7,159.20 × 1,485.19
  4. Step 4: Simplify right side
    4,771.90x = 10,632,772.25
  5. Step 5: Solve for x
    x = 10,632,772.25/4,771.90
  6. Step 6: Final answer
    x = 2,228.21

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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.