Home / 3,628.91-5,017.95-2,881.55

Finding the Fourth Proportional to 3,628.91, 5,017.95 and 2,881.55

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Solution

The fourth proportional to 3,628.91, 5,017.95 and 2,881.55 is: 3,984.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.91 : 5,017.95 = 2,881.55 : x
  2. Step 2: Convert to fraction form
    3,628.91/5,017.95 = 2,881.55/x
  3. Step 3: Cross multiply
    3,628.91x = 5,017.95 × 2,881.55
  4. Step 4: Simplify right side
    3,628.91x = 14,459,473.82
  5. Step 5: Solve for x
    x = 14,459,473.82/3,628.91
  6. Step 6: Final answer
    x = 3,984.52

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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.