Home / 1,802.06-2,485.32-1,172.28

Finding the Fourth Proportional to 1,802.06, 2,485.32 and 1,172.28

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Solution

The fourth proportional to 1,802.06, 2,485.32 and 1,172.28 is: 1,616.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.06 : 2,485.32 = 1,172.28 : x
  2. Step 2: Convert to fraction form
    1,802.06/2,485.32 = 1,172.28/x
  3. Step 3: Cross multiply
    1,802.06x = 2,485.32 × 1,172.28
  4. Step 4: Simplify right side
    1,802.06x = 2,913,490.93
  5. Step 5: Solve for x
    x = 2,913,490.93/1,802.06
  6. Step 6: Final answer
    x = 1,616.76

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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.