Home / 1,802.92-2,487.68-1,173.56

Finding the Fourth Proportional to 1,802.92, 2,487.68 and 1,173.56

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Solution

The fourth proportional to 1,802.92, 2,487.68 and 1,173.56 is: 1,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.92 : 2,487.68 = 1,173.56 : x
  2. Step 2: Convert to fraction form
    1,802.92/2,487.68 = 1,173.56/x
  3. Step 3: Cross multiply
    1,802.92x = 2,487.68 × 1,173.56
  4. Step 4: Simplify right side
    1,802.92x = 2,919,441.74
  5. Step 5: Solve for x
    x = 2,919,441.74/1,802.92
  6. Step 6: Final answer
    x = 1,619.29

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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.