Home / 2,566.40-3,541.64-1,387.47

Finding the Fourth Proportional to 2,566.40, 3,541.64 and 1,387.47

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Solution

The fourth proportional to 2,566.40, 3,541.64 and 1,387.47 is: 1,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.40 : 3,541.64 = 1,387.47 : x
  2. Step 2: Convert to fraction form
    2,566.40/3,541.64 = 1,387.47/x
  3. Step 3: Cross multiply
    2,566.40x = 3,541.64 × 1,387.47
  4. Step 4: Simplify right side
    2,566.40x = 4,913,912.31
  5. Step 5: Solve for x
    x = 4,913,912.31/2,566.40
  6. Step 6: Final answer
    x = 1,914.71

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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.