Home / 4,021.02-6,031.60-1,247.78

Finding the Fourth Proportional to 4,021.02, 6,031.60 and 1,247.78

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Solution

The fourth proportional to 4,021.02, 6,031.60 and 1,247.78 is: 1,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,021.02 : 6,031.60 = 1,247.78 : x
  2. Step 2: Convert to fraction form
    4,021.02/6,031.60 = 1,247.78/x
  3. Step 3: Cross multiply
    4,021.02x = 6,031.60 × 1,247.78
  4. Step 4: Simplify right side
    4,021.02x = 7,526,099.19
  5. Step 5: Solve for x
    x = 7,526,099.19/4,021.02
  6. Step 6: Final answer
    x = 1,871.69

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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.