Home / 1,455.90-2,167.40-1,447.26

Finding the Fourth Proportional to 1,455.90, 2,167.40 and 1,447.26

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Solution

The fourth proportional to 1,455.90, 2,167.40 and 1,447.26 is: 2,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.90 : 2,167.40 = 1,447.26 : x
  2. Step 2: Convert to fraction form
    1,455.90/2,167.40 = 1,447.26/x
  3. Step 3: Cross multiply
    1,455.90x = 2,167.40 × 1,447.26
  4. Step 4: Simplify right side
    1,455.90x = 3,136,784.09
  5. Step 5: Solve for x
    x = 3,136,784.09/1,455.90
  6. Step 6: Final answer
    x = 2,154.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.