Home / 1,881.04-2,820.48-1,112.08

Finding the Fourth Proportional to 1,881.04, 2,820.48 and 1,112.08

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Solution

The fourth proportional to 1,881.04, 2,820.48 and 1,112.08 is: 1,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,881.04 : 2,820.48 = 1,112.08 : x
  2. Step 2: Convert to fraction form
    1,881.04/2,820.48 = 1,112.08/x
  3. Step 3: Cross multiply
    1,881.04x = 2,820.48 × 1,112.08
  4. Step 4: Simplify right side
    1,881.04x = 3,136,599.40
  5. Step 5: Solve for x
    x = 3,136,599.40/1,881.04
  6. Step 6: Final answer
    x = 1,667.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.