Home / 5,140.57-7,094.04-2,782.76

Finding the Fourth Proportional to 5,140.57, 7,094.04 and 2,782.76

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Solution

The fourth proportional to 5,140.57, 7,094.04 and 2,782.76 is: 3,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.57 : 7,094.04 = 2,782.76 : x
  2. Step 2: Convert to fraction form
    5,140.57/7,094.04 = 2,782.76/x
  3. Step 3: Cross multiply
    5,140.57x = 7,094.04 × 2,782.76
  4. Step 4: Simplify right side
    5,140.57x = 19,740,961.37
  5. Step 5: Solve for x
    x = 19,740,961.37/5,140.57
  6. Step 6: Final answer
    x = 3,840.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.