Home / 2,807.02-4,213.13-1,421.33

Finding the Fourth Proportional to 2,807.02, 4,213.13 and 1,421.33

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Solution

The fourth proportional to 2,807.02, 4,213.13 and 1,421.33 is: 2,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807.02 : 4,213.13 = 1,421.33 : x
  2. Step 2: Convert to fraction form
    2,807.02/4,213.13 = 1,421.33/x
  3. Step 3: Cross multiply
    2,807.02x = 4,213.13 × 1,421.33
  4. Step 4: Simplify right side
    2,807.02x = 5,988,250.03
  5. Step 5: Solve for x
    x = 5,988,250.03/2,807.02
  6. Step 6: Final answer
    x = 2,133.31

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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.