Home / 2,170,968.81-2,993,976.54-1,355,248.20

Finding the Fourth Proportional to 2,170,968.81, 2,993,976.54 and 1,355,248.20

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Solution

The fourth proportional to 2,170,968.81, 2,993,976.54 and 1,355,248.20 is: 1,869,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170,968.81 : 2,993,976.54 = 1,355,248.20 : x
  2. Step 2: Convert to fraction form
    2,170,968.81/2,993,976.54 = 1,355,248.20/x
  3. Step 3: Cross multiply
    2,170,968.81x = 2,993,976.54 × 1,355,248.20
  4. Step 4: Simplify right side
    2,170,968.81x = 4,057,581,316,677.23
  5. Step 5: Solve for x
    x = 4,057,581,316,677.23/2,170,968.81
  6. Step 6: Final answer
    x = 1,869,018.71

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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.