Home / 2,283.85-3,150.55-1,387.35

Finding the Fourth Proportional to 2,283.85, 3,150.55 and 1,387.35

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Solution

The fourth proportional to 2,283.85, 3,150.55 and 1,387.35 is: 1,913.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,283.85 : 3,150.55 = 1,387.35 : x
  2. Step 2: Convert to fraction form
    2,283.85/3,150.55 = 1,387.35/x
  3. Step 3: Cross multiply
    2,283.85x = 3,150.55 × 1,387.35
  4. Step 4: Simplify right side
    2,283.85x = 4,370,899.63
  5. Step 5: Solve for x
    x = 4,370,899.63/2,283.85
  6. Step 6: Final answer
    x = 1,913.83

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1.5x scale

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.