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Finding the Fourth Proportional to 1,293.74, 1,950.36 and 1,210.22

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Solution

The fourth proportional to 1,293.74, 1,950.36 and 1,210.22 is: 1,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293.74 : 1,950.36 = 1,210.22 : x
  2. Step 2: Convert to fraction form
    1,293.74/1,950.36 = 1,210.22/x
  3. Step 3: Cross multiply
    1,293.74x = 1,950.36 × 1,210.22
  4. Step 4: Simplify right side
    1,293.74x = 2,360,364.68
  5. Step 5: Solve for x
    x = 2,360,364.68/1,293.74
  6. Step 6: Final answer
    x = 1,824.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.