Home / 3,838.59-5,295.67-2,421.81

Finding the Fourth Proportional to 3,838.59, 5,295.67 and 2,421.81

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Solution

The fourth proportional to 3,838.59, 5,295.67 and 2,421.81 is: 3,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838.59 : 5,295.67 = 2,421.81 : x
  2. Step 2: Convert to fraction form
    3,838.59/5,295.67 = 2,421.81/x
  3. Step 3: Cross multiply
    3,838.59x = 5,295.67 × 2,421.81
  4. Step 4: Simplify right side
    3,838.59x = 12,825,100.51
  5. Step 5: Solve for x
    x = 12,825,100.51/3,838.59
  6. Step 6: Final answer
    x = 3,341.10

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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.