Home / 4,074.78-6,111.45-1,152.30

Finding the Fourth Proportional to 4,074.78, 6,111.45 and 1,152.30

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Solution

The fourth proportional to 4,074.78, 6,111.45 and 1,152.30 is: 1,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,074.78 : 6,111.45 = 1,152.30 : x
  2. Step 2: Convert to fraction form
    4,074.78/6,111.45 = 1,152.30/x
  3. Step 3: Cross multiply
    4,074.78x = 6,111.45 × 1,152.30
  4. Step 4: Simplify right side
    4,074.78x = 7,042,223.84
  5. Step 5: Solve for x
    x = 7,042,223.84/4,074.78
  6. Step 6: Final answer
    x = 1,728.25

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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.