Home / 2,117.55-2,923.67-1,619.32

Finding the Fourth Proportional to 2,117.55, 2,923.67 and 1,619.32

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Solution

The fourth proportional to 2,117.55, 2,923.67 and 1,619.32 is: 2,235.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.55 : 2,923.67 = 1,619.32 : x
  2. Step 2: Convert to fraction form
    2,117.55/2,923.67 = 1,619.32/x
  3. Step 3: Cross multiply
    2,117.55x = 2,923.67 × 1,619.32
  4. Step 4: Simplify right side
    2,117.55x = 4,734,354.04
  5. Step 5: Solve for x
    x = 4,734,354.04/2,117.55
  6. Step 6: Final answer
    x = 2,235.77

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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.