Home / 1,895.36-2,615.30-1,186.86

Finding the Fourth Proportional to 1,895.36, 2,615.30 and 1,186.86

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Solution

The fourth proportional to 1,895.36, 2,615.30 and 1,186.86 is: 1,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.36 : 2,615.30 = 1,186.86 : x
  2. Step 2: Convert to fraction form
    1,895.36/2,615.30 = 1,186.86/x
  3. Step 3: Cross multiply
    1,895.36x = 2,615.30 × 1,186.86
  4. Step 4: Simplify right side
    1,895.36x = 3,103,989.02
  5. Step 5: Solve for x
    x = 3,103,989.02/1,895.36
  6. Step 6: Final answer
    x = 1,637.68

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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.