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Finding the Fourth Proportional to 7,049.56, 10,574.34 and 1,855

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Solution

The fourth proportional to 7,049.56, 10,574.34 and 1,855 is: 2,782.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.56 : 10,574.34 = 1,855 : x
  2. Step 2: Convert to fraction form
    7,049.56/10,574.34 = 1,855/x
  3. Step 3: Cross multiply
    7,049.56x = 10,574.34 × 1,855
  4. Step 4: Simplify right side
    7,049.56x = 19,615,400.70
  5. Step 5: Solve for x
    x = 19,615,400.70/7,049.56
  6. Step 6: Final answer
    x = 2,782.50

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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.