Home / 4,458.02-6,180.21-4,221

Finding the Fourth Proportional to 4,458.02, 6,180.21 and 4,221

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Solution

The fourth proportional to 4,458.02, 6,180.21 and 4,221 is: 5,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,458.02 : 6,180.21 = 4,221 : x
  2. Step 2: Convert to fraction form
    4,458.02/6,180.21 = 4,221/x
  3. Step 3: Cross multiply
    4,458.02x = 6,180.21 × 4,221
  4. Step 4: Simplify right side
    4,458.02x = 26,086,666.41
  5. Step 5: Solve for x
    x = 26,086,666.41/4,458.02
  6. Step 6: Final answer
    x = 5,851.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.