Home / 4,751.95-7,127.93-1,289.20

Finding the Fourth Proportional to 4,751.95, 7,127.93 and 1,289.20

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Solution

The fourth proportional to 4,751.95, 7,127.93 and 1,289.20 is: 1,933.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.95 : 7,127.93 = 1,289.20 : x
  2. Step 2: Convert to fraction form
    4,751.95/7,127.93 = 1,289.20/x
  3. Step 3: Cross multiply
    4,751.95x = 7,127.93 × 1,289.20
  4. Step 4: Simplify right side
    4,751.95x = 9,189,303.09
  5. Step 5: Solve for x
    x = 9,189,303.09/4,751.95
  6. Step 6: Final answer
    x = 1,933.80

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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.