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Finding the Fourth Proportional to 1,622.25, 2,239.11 and 924.03

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Solution

The fourth proportional to 1,622.25, 2,239.11 and 924.03 is: 1,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622.25 : 2,239.11 = 924.03 : x
  2. Step 2: Convert to fraction form
    1,622.25/2,239.11 = 924.03/x
  3. Step 3: Cross multiply
    1,622.25x = 2,239.11 × 924.03
  4. Step 4: Simplify right side
    1,622.25x = 2,069,004.81
  5. Step 5: Solve for x
    x = 2,069,004.81/1,622.25
  6. Step 6: Final answer
    x = 1,275.39

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1.5x scale

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.