Home / 6,287.55-9,433.35-1,905.45

Finding the Fourth Proportional to 6,287.55, 9,433.35 and 1,905.45

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Solution

The fourth proportional to 6,287.55, 9,433.35 and 1,905.45 is: 2,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.55 : 9,433.35 = 1,905.45 : x
  2. Step 2: Convert to fraction form
    6,287.55/9,433.35 = 1,905.45/x
  3. Step 3: Cross multiply
    6,287.55x = 9,433.35 × 1,905.45
  4. Step 4: Simplify right side
    6,287.55x = 17,974,776.76
  5. Step 5: Solve for x
    x = 17,974,776.76/6,287.55
  6. Step 6: Final answer
    x = 2,858.79

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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.