Home / 1,455.40-2,008.61-826.03

Finding the Fourth Proportional to 1,455.40, 2,008.61 and 826.03

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Solution

The fourth proportional to 1,455.40, 2,008.61 and 826.03 is: 1,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455.40 : 2,008.61 = 826.03 : x
  2. Step 2: Convert to fraction form
    1,455.40/2,008.61 = 826.03/x
  3. Step 3: Cross multiply
    1,455.40x = 2,008.61 × 826.03
  4. Step 4: Simplify right side
    1,455.40x = 1,659,172.12
  5. Step 5: Solve for x
    x = 1,659,172.12/1,455.40
  6. Step 6: Final answer
    x = 1,140.01

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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.