Home / 1,877.67-2,816.55-1,053.90

Finding the Fourth Proportional to 1,877.67, 2,816.55 and 1,053.90

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Solution

The fourth proportional to 1,877.67, 2,816.55 and 1,053.90 is: 1,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877.67 : 2,816.55 = 1,053.90 : x
  2. Step 2: Convert to fraction form
    1,877.67/2,816.55 = 1,053.90/x
  3. Step 3: Cross multiply
    1,877.67x = 2,816.55 × 1,053.90
  4. Step 4: Simplify right side
    1,877.67x = 2,968,362.05
  5. Step 5: Solve for x
    x = 2,968,362.05/1,877.67
  6. Step 6: Final answer
    x = 1,580.88

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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.