Home / 1,896.60-2,615.54-1,688.84

Finding the Fourth Proportional to 1,896.60, 2,615.54 and 1,688.84

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Solution

The fourth proportional to 1,896.60, 2,615.54 and 1,688.84 is: 2,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.60 : 2,615.54 = 1,688.84 : x
  2. Step 2: Convert to fraction form
    1,896.60/2,615.54 = 1,688.84/x
  3. Step 3: Cross multiply
    1,896.60x = 2,615.54 × 1,688.84
  4. Step 4: Simplify right side
    1,896.60x = 4,417,207.05
  5. Step 5: Solve for x
    x = 4,417,207.05/1,896.60
  6. Step 6: Final answer
    x = 2,329.01

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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.