Home / 1,454.02-2,167.81-1,289.86

Finding the Fourth Proportional to 1,454.02, 2,167.81 and 1,289.86

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Solution

The fourth proportional to 1,454.02, 2,167.81 and 1,289.86 is: 1,923.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.02 : 2,167.81 = 1,289.86 : x
  2. Step 2: Convert to fraction form
    1,454.02/2,167.81 = 1,289.86/x
  3. Step 3: Cross multiply
    1,454.02x = 2,167.81 × 1,289.86
  4. Step 4: Simplify right side
    1,454.02x = 2,796,164.96
  5. Step 5: Solve for x
    x = 2,796,164.96/1,454.02
  6. Step 6: Final answer
    x = 1,923.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.