Home / 1,415.32-2,114.33-1,127.08

Finding the Fourth Proportional to 1,415.32, 2,114.33 and 1,127.08

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Solution

The fourth proportional to 1,415.32, 2,114.33 and 1,127.08 is: 1,683.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415.32 : 2,114.33 = 1,127.08 : x
  2. Step 2: Convert to fraction form
    1,415.32/2,114.33 = 1,127.08/x
  3. Step 3: Cross multiply
    1,415.32x = 2,114.33 × 1,127.08
  4. Step 4: Simplify right side
    1,415.32x = 2,383,019.06
  5. Step 5: Solve for x
    x = 2,383,019.06/1,415.32
  6. Step 6: Final answer
    x = 1,683.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.