Home / 1,684.42-2,325.35-1,305.47

Finding the Fourth Proportional to 1,684.42, 2,325.35 and 1,305.47

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Solution

The fourth proportional to 1,684.42, 2,325.35 and 1,305.47 is: 1,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.42 : 2,325.35 = 1,305.47 : x
  2. Step 2: Convert to fraction form
    1,684.42/2,325.35 = 1,305.47/x
  3. Step 3: Cross multiply
    1,684.42x = 2,325.35 × 1,305.47
  4. Step 4: Simplify right side
    1,684.42x = 3,035,670.26
  5. Step 5: Solve for x
    x = 3,035,670.26/1,684.42
  6. Step 6: Final answer
    x = 1,802.20

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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.