Home / 6,139.02-8,456.85-4,455.48

Finding the Fourth Proportional to 6,139.02, 8,456.85 and 4,455.48

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Solution

The fourth proportional to 6,139.02, 8,456.85 and 4,455.48 is: 6,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.02 : 8,456.85 = 4,455.48 : x
  2. Step 2: Convert to fraction form
    6,139.02/8,456.85 = 4,455.48/x
  3. Step 3: Cross multiply
    6,139.02x = 8,456.85 × 4,455.48
  4. Step 4: Simplify right side
    6,139.02x = 37,679,326.04
  5. Step 5: Solve for x
    x = 37,679,326.04/6,139.02
  6. Step 6: Final answer
    x = 6,137.68

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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.