Home / 1,270.17-1,903.14-1,222.18

Finding the Fourth Proportional to 1,270.17, 1,903.14 and 1,222.18

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Solution

The fourth proportional to 1,270.17, 1,903.14 and 1,222.18 is: 1,831.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.17 : 1,903.14 = 1,222.18 : x
  2. Step 2: Convert to fraction form
    1,270.17/1,903.14 = 1,222.18/x
  3. Step 3: Cross multiply
    1,270.17x = 1,903.14 × 1,222.18
  4. Step 4: Simplify right side
    1,270.17x = 2,325,979.65
  5. Step 5: Solve for x
    x = 2,325,979.65/1,270.17
  6. Step 6: Final answer
    x = 1,831.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.