Home / 1,877.77-2,817.10-579.23

Finding the Fourth Proportional to 1,877.77, 2,817.10 and 579.23

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Solution

The fourth proportional to 1,877.77, 2,817.10 and 579.23 is: 868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.77 : 2,817.10 = 579.23 : x
  2. Step 2: Convert to fraction form
    1,877.77/2,817.10 = 579.23/x
  3. Step 3: Cross multiply
    1,877.77x = 2,817.10 × 579.23
  4. Step 4: Simplify right side
    1,877.77x = 1,631,763.51
  5. Step 5: Solve for x
    x = 1,631,763.51/1,877.77
  6. Step 6: Final answer
    x = 868.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.