Home / 1,349.94-1,865.46-1,017.80

Finding the Fourth Proportional to 1,349.94, 1,865.46 and 1,017.80

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Solution

The fourth proportional to 1,349.94, 1,865.46 and 1,017.80 is: 1,406.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.94 : 1,865.46 = 1,017.80 : x
  2. Step 2: Convert to fraction form
    1,349.94/1,865.46 = 1,017.80/x
  3. Step 3: Cross multiply
    1,349.94x = 1,865.46 × 1,017.80
  4. Step 4: Simplify right side
    1,349.94x = 1,898,666.67
  5. Step 5: Solve for x
    x = 1,898,666.67/1,349.94
  6. Step 6: Final answer
    x = 1,406.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.