Home / 3,988,619.04-5,505,472.08-2,781,783.84

Finding the Fourth Proportional to 3,988,619.04, 5,505,472.08 and 2,781,783.84

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Solution

The fourth proportional to 3,988,619.04, 5,505,472.08 and 2,781,783.84 is: 3,839,683.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,619.04 : 5,505,472.08 = 2,781,783.84 : x
  2. Step 2: Convert to fraction form
    3,988,619.04/5,505,472.08 = 2,781,783.84/x
  3. Step 3: Cross multiply
    3,988,619.04x = 5,505,472.08 × 2,781,783.84
  4. Step 4: Simplify right side
    3,988,619.04x = 15,315,033,263,715.19
  5. Step 5: Solve for x
    x = 15,315,033,263,715.19/3,988,619.04
  6. Step 6: Final answer
    x = 3,839,683.14

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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.