Home / 2,806.98-4,212.09-1,557.69

Finding the Fourth Proportional to 2,806.98, 4,212.09 and 1,557.69

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Solution

The fourth proportional to 2,806.98, 4,212.09 and 1,557.69 is: 2,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.98 : 4,212.09 = 1,557.69 : x
  2. Step 2: Convert to fraction form
    2,806.98/4,212.09 = 1,557.69/x
  3. Step 3: Cross multiply
    2,806.98x = 4,212.09 × 1,557.69
  4. Step 4: Simplify right side
    2,806.98x = 6,561,130.47
  5. Step 5: Solve for x
    x = 6,561,130.47/2,806.98
  6. Step 6: Final answer
    x = 2,337.43

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1.5x scale

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.