Home / 4,885.47-7,328.34-4,187.79

Finding the Fourth Proportional to 4,885.47, 7,328.34 and 4,187.79

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Solution

The fourth proportional to 4,885.47, 7,328.34 and 4,187.79 is: 6,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.47 : 7,328.34 = 4,187.79 : x
  2. Step 2: Convert to fraction form
    4,885.47/7,328.34 = 4,187.79/x
  3. Step 3: Cross multiply
    4,885.47x = 7,328.34 × 4,187.79
  4. Step 4: Simplify right side
    4,885.47x = 30,689,548.97
  5. Step 5: Solve for x
    x = 30,689,548.97/4,885.47
  6. Step 6: Final answer
    x = 6,281.80

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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.