Home / 2,653.20-3,661.98-1,856.16

Finding the Fourth Proportional to 2,653.20, 3,661.98 and 1,856.16

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Solution

The fourth proportional to 2,653.20, 3,661.98 and 1,856.16 is: 2,561.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,653.20 : 3,661.98 = 1,856.16 : x
  2. Step 2: Convert to fraction form
    2,653.20/3,661.98 = 1,856.16/x
  3. Step 3: Cross multiply
    2,653.20x = 3,661.98 × 1,856.16
  4. Step 4: Simplify right side
    2,653.20x = 6,797,220.80
  5. Step 5: Solve for x
    x = 6,797,220.80/2,653.20
  6. Step 6: Final answer
    x = 2,561.90

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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.