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Finding the Fourth Proportional to 1,802.22, 2,487.06 and 974.22

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Solution

The fourth proportional to 1,802.22, 2,487.06 and 974.22 is: 1,344.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.22 : 2,487.06 = 974.22 : x
  2. Step 2: Convert to fraction form
    1,802.22/2,487.06 = 974.22/x
  3. Step 3: Cross multiply
    1,802.22x = 2,487.06 × 974.22
  4. Step 4: Simplify right side
    1,802.22x = 2,422,943.59
  5. Step 5: Solve for x
    x = 2,422,943.59/1,802.22
  6. Step 6: Final answer
    x = 1,344.42

Related Problems

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Double scale
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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.