Home / 3,838.34-5,298.67-2,894.51

Finding the Fourth Proportional to 3,838.34, 5,298.67 and 2,894.51

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Solution

The fourth proportional to 3,838.34, 5,298.67 and 2,894.51 is: 3,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.34 : 5,298.67 = 2,894.51 : x
  2. Step 2: Convert to fraction form
    3,838.34/5,298.67 = 2,894.51/x
  3. Step 3: Cross multiply
    3,838.34x = 5,298.67 × 2,894.51
  4. Step 4: Simplify right side
    3,838.34x = 15,337,070.17
  5. Step 5: Solve for x
    x = 15,337,070.17/3,838.34
  6. Step 6: Final answer
    x = 3,995.75

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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.