Home / 3,688.26-5,089.80-2,116.35

Finding the Fourth Proportional to 3,688.26, 5,089.80 and 2,116.35

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Solution

The fourth proportional to 3,688.26, 5,089.80 and 2,116.35 is: 2,920.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.26 : 5,089.80 = 2,116.35 : x
  2. Step 2: Convert to fraction form
    3,688.26/5,089.80 = 2,116.35/x
  3. Step 3: Cross multiply
    3,688.26x = 5,089.80 × 2,116.35
  4. Step 4: Simplify right side
    3,688.26x = 10,771,798.23
  5. Step 5: Solve for x
    x = 10,771,798.23/3,688.26
  6. Step 6: Final answer
    x = 2,920.56

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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.