Home / 3,688.46-5,089.98-2,116.46

Finding the Fourth Proportional to 3,688.46, 5,089.98 and 2,116.46

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Solution

The fourth proportional to 3,688.46, 5,089.98 and 2,116.46 is: 2,920.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.46 : 5,089.98 = 2,116.46 : x
  2. Step 2: Convert to fraction form
    3,688.46/5,089.98 = 2,116.46/x
  3. Step 3: Cross multiply
    3,688.46x = 5,089.98 × 2,116.46
  4. Step 4: Simplify right side
    3,688.46x = 10,772,739.07
  5. Step 5: Solve for x
    x = 10,772,739.07/3,688.46
  6. Step 6: Final answer
    x = 2,920.66

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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.