Home / 2,772.55-3,826.08-1,513.63

Finding the Fourth Proportional to 2,772.55, 3,826.08 and 1,513.63

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Solution

The fourth proportional to 2,772.55, 3,826.08 and 1,513.63 is: 2,088.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.55 : 3,826.08 = 1,513.63 : x
  2. Step 2: Convert to fraction form
    2,772.55/3,826.08 = 1,513.63/x
  3. Step 3: Cross multiply
    2,772.55x = 3,826.08 × 1,513.63
  4. Step 4: Simplify right side
    2,772.55x = 5,791,259.91
  5. Step 5: Solve for x
    x = 5,791,259.91/2,772.55
  6. Step 6: Final answer
    x = 2,088.79

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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.