Home / 2,840.40-4,237.79-2,528.55

Finding the Fourth Proportional to 2,840.40, 4,237.79 and 2,528.55

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Solution

The fourth proportional to 2,840.40, 4,237.79 and 2,528.55 is: 3,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.40 : 4,237.79 = 2,528.55 : x
  2. Step 2: Convert to fraction form
    2,840.40/4,237.79 = 2,528.55/x
  3. Step 3: Cross multiply
    2,840.40x = 4,237.79 × 2,528.55
  4. Step 4: Simplify right side
    2,840.40x = 10,715,451.26
  5. Step 5: Solve for x
    x = 10,715,451.26/2,840.40
  6. Step 6: Final answer
    x = 3,772.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.