Home / 1,438.02-2,157.72-1,244.22

Finding the Fourth Proportional to 1,438.02, 2,157.72 and 1,244.22

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Solution

The fourth proportional to 1,438.02, 2,157.72 and 1,244.22 is: 1,866.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438.02 : 2,157.72 = 1,244.22 : x
  2. Step 2: Convert to fraction form
    1,438.02/2,157.72 = 1,244.22/x
  3. Step 3: Cross multiply
    1,438.02x = 2,157.72 × 1,244.22
  4. Step 4: Simplify right side
    1,438.02x = 2,684,678.38
  5. Step 5: Solve for x
    x = 2,684,678.38/1,438.02
  6. Step 6: Final answer
    x = 1,866.93

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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.