Home / 2,918-4,026.84-1,871.48

Finding the Fourth Proportional to 2,918, 4,026.84 and 1,871.48

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Solution

The fourth proportional to 2,918, 4,026.84 and 1,871.48 is: 2,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918 : 4,026.84 = 1,871.48 : x
  2. Step 2: Convert to fraction form
    2,918/4,026.84 = 1,871.48/x
  3. Step 3: Cross multiply
    2,918x = 4,026.84 × 1,871.48
  4. Step 4: Simplify right side
    2,918x = 7,536,150.52
  5. Step 5: Solve for x
    x = 7,536,150.52/2,918
  6. Step 6: Final answer
    x = 2,582.64

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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.