Home / 1,646.78-2,268.71-1,148.53

Finding the Fourth Proportional to 1,646.78, 2,268.71 and 1,148.53

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Solution

The fourth proportional to 1,646.78, 2,268.71 and 1,148.53 is: 1,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.78 : 2,268.71 = 1,148.53 : x
  2. Step 2: Convert to fraction form
    1,646.78/2,268.71 = 1,148.53/x
  3. Step 3: Cross multiply
    1,646.78x = 2,268.71 × 1,148.53
  4. Step 4: Simplify right side
    1,646.78x = 2,605,678.64
  5. Step 5: Solve for x
    x = 2,605,678.64/1,646.78
  6. Step 6: Final answer
    x = 1,582.29

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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.