Home / 4,751.81-7,127.75-1,289.06

Finding the Fourth Proportional to 4,751.81, 7,127.75 and 1,289.06

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Solution

The fourth proportional to 4,751.81, 7,127.75 and 1,289.06 is: 1,933.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.81 : 7,127.75 = 1,289.06 : x
  2. Step 2: Convert to fraction form
    4,751.81/7,127.75 = 1,289.06/x
  3. Step 3: Cross multiply
    4,751.81x = 7,127.75 × 1,289.06
  4. Step 4: Simplify right side
    4,751.81x = 9,188,108.79
  5. Step 5: Solve for x
    x = 9,188,108.79/4,751.81
  6. Step 6: Final answer
    x = 1,933.60

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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.