Home / 1,412.02-2,114.38-1,207.90

Finding the Fourth Proportional to 1,412.02, 2,114.38 and 1,207.90

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Solution

The fourth proportional to 1,412.02, 2,114.38 and 1,207.90 is: 1,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.02 : 2,114.38 = 1,207.90 : x
  2. Step 2: Convert to fraction form
    1,412.02/2,114.38 = 1,207.90/x
  3. Step 3: Cross multiply
    1,412.02x = 2,114.38 × 1,207.90
  4. Step 4: Simplify right side
    1,412.02x = 2,553,959.60
  5. Step 5: Solve for x
    x = 2,553,959.60/1,412.02
  6. Step 6: Final answer
    x = 1,808.73

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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.