Home / 3,840.50-5,760.05-1,066.47

Finding the Fourth Proportional to 3,840.50, 5,760.05 and 1,066.47

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Solution

The fourth proportional to 3,840.50, 5,760.05 and 1,066.47 is: 1,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.50 : 5,760.05 = 1,066.47 : x
  2. Step 2: Convert to fraction form
    3,840.50/5,760.05 = 1,066.47/x
  3. Step 3: Cross multiply
    3,840.50x = 5,760.05 × 1,066.47
  4. Step 4: Simplify right side
    3,840.50x = 6,142,915.19
  5. Step 5: Solve for x
    x = 6,142,915.19/3,840.50
  6. Step 6: Final answer
    x = 1,599.51

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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.