Home / 2,790.88-4,188.56-1,476.12

Finding the Fourth Proportional to 2,790.88, 4,188.56 and 1,476.12

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Solution

The fourth proportional to 2,790.88, 4,188.56 and 1,476.12 is: 2,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.88 : 4,188.56 = 1,476.12 : x
  2. Step 2: Convert to fraction form
    2,790.88/4,188.56 = 1,476.12/x
  3. Step 3: Cross multiply
    2,790.88x = 4,188.56 × 1,476.12
  4. Step 4: Simplify right side
    2,790.88x = 6,182,817.19
  5. Step 5: Solve for x
    x = 6,182,817.19/2,790.88
  6. Step 6: Final answer
    x = 2,215.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.