Home / 2,759.40-4,140.06-1,528.20

Finding the Fourth Proportional to 2,759.40, 4,140.06 and 1,528.20

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Solution

The fourth proportional to 2,759.40, 4,140.06 and 1,528.20 is: 2,292.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,759.40 : 4,140.06 = 1,528.20 : x
  2. Step 2: Convert to fraction form
    2,759.40/4,140.06 = 1,528.20/x
  3. Step 3: Cross multiply
    2,759.40x = 4,140.06 × 1,528.20
  4. Step 4: Simplify right side
    2,759.40x = 6,326,839.69
  5. Step 5: Solve for x
    x = 6,326,839.69/2,759.40
  6. Step 6: Final answer
    x = 2,292.83

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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.