Home / 2,047.40-2,826.18-1,605.80

Finding the Fourth Proportional to 2,047.40, 2,826.18 and 1,605.80

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Solution

The fourth proportional to 2,047.40, 2,826.18 and 1,605.80 is: 2,216.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,047.40 : 2,826.18 = 1,605.80 : x
  2. Step 2: Convert to fraction form
    2,047.40/2,826.18 = 1,605.80/x
  3. Step 3: Cross multiply
    2,047.40x = 2,826.18 × 1,605.80
  4. Step 4: Simplify right side
    2,047.40x = 4,538,279.84
  5. Step 5: Solve for x
    x = 4,538,279.84/2,047.40
  6. Step 6: Final answer
    x = 2,216.61

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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.