Home / 2,585.63-3,564.84-1,878.50

Finding the Fourth Proportional to 2,585.63, 3,564.84 and 1,878.50

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Solution

The fourth proportional to 2,585.63, 3,564.84 and 1,878.50 is: 2,589.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.63 : 3,564.84 = 1,878.50 : x
  2. Step 2: Convert to fraction form
    2,585.63/3,564.84 = 1,878.50/x
  3. Step 3: Cross multiply
    2,585.63x = 3,564.84 × 1,878.50
  4. Step 4: Simplify right side
    2,585.63x = 6,696,567.90
  5. Step 5: Solve for x
    x = 6,696,567.90/2,585.63
  6. Step 6: Final answer
    x = 2,589.91

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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.