Home / 3,072.42-4,240.02-1,675.20

Finding the Fourth Proportional to 3,072.42, 4,240.02 and 1,675.20

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Solution

The fourth proportional to 3,072.42, 4,240.02 and 1,675.20 is: 2,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.42 : 4,240.02 = 1,675.20 : x
  2. Step 2: Convert to fraction form
    3,072.42/4,240.02 = 1,675.20/x
  3. Step 3: Cross multiply
    3,072.42x = 4,240.02 × 1,675.20
  4. Step 4: Simplify right side
    3,072.42x = 7,102,881.50
  5. Step 5: Solve for x
    x = 7,102,881.50/3,072.42
  6. Step 6: Final answer
    x = 2,311.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.