Home / 3,759.61-5,638.73-1,127.46

Finding the Fourth Proportional to 3,759.61, 5,638.73 and 1,127.46

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Solution

The fourth proportional to 3,759.61, 5,638.73 and 1,127.46 is: 1,690.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.61 : 5,638.73 = 1,127.46 : x
  2. Step 2: Convert to fraction form
    3,759.61/5,638.73 = 1,127.46/x
  3. Step 3: Cross multiply
    3,759.61x = 5,638.73 × 1,127.46
  4. Step 4: Simplify right side
    3,759.61x = 6,357,442.53
  5. Step 5: Solve for x
    x = 6,357,442.53/3,759.61
  6. Step 6: Final answer
    x = 1,690.98

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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.