Home / 2,566.61-3,541.91-1,387.68

Finding the Fourth Proportional to 2,566.61, 3,541.91 and 1,387.68

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Solution

The fourth proportional to 2,566.61, 3,541.91 and 1,387.68 is: 1,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.61 : 3,541.91 = 1,387.68 : x
  2. Step 2: Convert to fraction form
    2,566.61/3,541.91 = 1,387.68/x
  3. Step 3: Cross multiply
    2,566.61x = 3,541.91 × 1,387.68
  4. Step 4: Simplify right side
    2,566.61x = 4,915,013.02
  5. Step 5: Solve for x
    x = 4,915,013.02/2,566.61
  6. Step 6: Final answer
    x = 1,914.98

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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.