Home / 1,622.23-2,238.54-913.98

Finding the Fourth Proportional to 1,622.23, 2,238.54 and 913.98

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Solution

The fourth proportional to 1,622.23, 2,238.54 and 913.98 is: 1,261.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.23 : 2,238.54 = 913.98 : x
  2. Step 2: Convert to fraction form
    1,622.23/2,238.54 = 913.98/x
  3. Step 3: Cross multiply
    1,622.23x = 2,238.54 × 913.98
  4. Step 4: Simplify right side
    1,622.23x = 2,045,985.76
  5. Step 5: Solve for x
    x = 2,045,985.76/1,622.23
  6. Step 6: Final answer
    x = 1,261.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.