Home / 1,557.07-2,335.93-826.45

Finding the Fourth Proportional to 1,557.07, 2,335.93 and 826.45

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Solution

The fourth proportional to 1,557.07, 2,335.93 and 826.45 is: 1,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,557.07 : 2,335.93 = 826.45 : x
  2. Step 2: Convert to fraction form
    1,557.07/2,335.93 = 826.45/x
  3. Step 3: Cross multiply
    1,557.07x = 2,335.93 × 826.45
  4. Step 4: Simplify right side
    1,557.07x = 1,930,529.35
  5. Step 5: Solve for x
    x = 1,930,529.35/1,557.07
  6. Step 6: Final answer
    x = 1,239.85

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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.