Home / 2,829.90-4,242.80-1,903.16

Finding the Fourth Proportional to 2,829.90, 4,242.80 and 1,903.16

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Solution

The fourth proportional to 2,829.90, 4,242.80 and 1,903.16 is: 2,853.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.90 : 4,242.80 = 1,903.16 : x
  2. Step 2: Convert to fraction form
    2,829.90/4,242.80 = 1,903.16/x
  3. Step 3: Cross multiply
    2,829.90x = 4,242.80 × 1,903.16
  4. Step 4: Simplify right side
    2,829.90x = 8,074,727.25
  5. Step 5: Solve for x
    x = 8,074,727.25/2,829.90
  6. Step 6: Final answer
    x = 2,853.36

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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.