Home / 1,782.73-2,461.35-1,120.60

Finding the Fourth Proportional to 1,782.73, 2,461.35 and 1,120.60

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Solution

The fourth proportional to 1,782.73, 2,461.35 and 1,120.60 is: 1,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.73 : 2,461.35 = 1,120.60 : x
  2. Step 2: Convert to fraction form
    1,782.73/2,461.35 = 1,120.60/x
  3. Step 3: Cross multiply
    1,782.73x = 2,461.35 × 1,120.60
  4. Step 4: Simplify right side
    1,782.73x = 2,758,188.81
  5. Step 5: Solve for x
    x = 2,758,188.81/1,782.73
  6. Step 6: Final answer
    x = 1,547.17

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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.