Home / 1,487.70-2,226.96-1,223.51

Finding the Fourth Proportional to 1,487.70, 2,226.96 and 1,223.51

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Solution

The fourth proportional to 1,487.70, 2,226.96 and 1,223.51 is: 1,831.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.70 : 2,226.96 = 1,223.51 : x
  2. Step 2: Convert to fraction form
    1,487.70/2,226.96 = 1,223.51/x
  3. Step 3: Cross multiply
    1,487.70x = 2,226.96 × 1,223.51
  4. Step 4: Simplify right side
    1,487.70x = 2,724,696.69
  5. Step 5: Solve for x
    x = 2,724,696.69/1,487.70
  6. Step 6: Final answer
    x = 1,831.48

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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.