Home / 4,549.20-6,821.76-2,085.60

Finding the Fourth Proportional to 4,549.20, 6,821.76 and 2,085.60

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Solution

The fourth proportional to 4,549.20, 6,821.76 and 2,085.60 is: 3,127.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,549.20 : 6,821.76 = 2,085.60 : x
  2. Step 2: Convert to fraction form
    4,549.20/6,821.76 = 2,085.60/x
  3. Step 3: Cross multiply
    4,549.20x = 6,821.76 × 2,085.60
  4. Step 4: Simplify right side
    4,549.20x = 14,227,462.66
  5. Step 5: Solve for x
    x = 14,227,462.66/4,549.20
  6. Step 6: Final answer
    x = 3,127.46

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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.