Home / 2,763.59-3,813.76-1,585.35

Finding the Fourth Proportional to 2,763.59, 3,813.76 and 1,585.35

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Solution

The fourth proportional to 2,763.59, 3,813.76 and 1,585.35 is: 2,187.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,763.59 : 3,813.76 = 1,585.35 : x
  2. Step 2: Convert to fraction form
    2,763.59/3,813.76 = 1,585.35/x
  3. Step 3: Cross multiply
    2,763.59x = 3,813.76 × 1,585.35
  4. Step 4: Simplify right side
    2,763.59x = 6,046,144.42
  5. Step 5: Solve for x
    x = 6,046,144.42/2,763.59
  6. Step 6: Final answer
    x = 2,187.79

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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.