Home / 2,875,555.89-3,968,280.45-1,586,395.80

Finding the Fourth Proportional to 2,875,555.89, 3,968,280.45 and 1,586,395.80

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Solution

The fourth proportional to 2,875,555.89, 3,968,280.45 and 1,586,395.80 is: 2,189,233.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875,555.89 : 3,968,280.45 = 1,586,395.80 : x
  2. Step 2: Convert to fraction form
    2,875,555.89/3,968,280.45 = 1,586,395.80/x
  3. Step 3: Cross multiply
    2,875,555.89x = 3,968,280.45 × 1,586,395.80
  4. Step 4: Simplify right side
    2,875,555.89x = 6,295,263,439,102.11
  5. Step 5: Solve for x
    x = 6,295,263,439,102.11/2,875,555.89
  6. Step 6: Final answer
    x = 2,189,233.55

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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.