Home / 1,896.08-2,615.46-1,398.56

Finding the Fourth Proportional to 1,896.08, 2,615.46 and 1,398.56

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Solution

The fourth proportional to 1,896.08, 2,615.46 and 1,398.56 is: 1,929.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,896.08 : 2,615.46 = 1,398.56 : x
  2. Step 2: Convert to fraction form
    1,896.08/2,615.46 = 1,398.56/x
  3. Step 3: Cross multiply
    1,896.08x = 2,615.46 × 1,398.56
  4. Step 4: Simplify right side
    1,896.08x = 3,657,877.74
  5. Step 5: Solve for x
    x = 3,657,877.74/1,896.08
  6. Step 6: Final answer
    x = 1,929.18

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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.