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Finding the Fourth Proportional to 2,973.36, 4,458.42 and 1,240.68

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Solution

The fourth proportional to 2,973.36, 4,458.42 and 1,240.68 is: 1,860.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.36 : 4,458.42 = 1,240.68 : x
  2. Step 2: Convert to fraction form
    2,973.36/4,458.42 = 1,240.68/x
  3. Step 3: Cross multiply
    2,973.36x = 4,458.42 × 1,240.68
  4. Step 4: Simplify right side
    2,973.36x = 5,531,472.53
  5. Step 5: Solve for x
    x = 5,531,472.53/2,973.36
  6. Step 6: Final answer
    x = 1,860.34

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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.