Home / 5,140.98-7,094.57-2,783.15

Finding the Fourth Proportional to 5,140.98, 7,094.57 and 2,783.15

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Solution

The fourth proportional to 5,140.98, 7,094.57 and 2,783.15 is: 3,840.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.98 : 7,094.57 = 2,783.15 : x
  2. Step 2: Convert to fraction form
    5,140.98/7,094.57 = 2,783.15/x
  3. Step 3: Cross multiply
    5,140.98x = 7,094.57 × 2,783.15
  4. Step 4: Simplify right side
    5,140.98x = 19,745,203.11
  5. Step 5: Solve for x
    x = 19,745,203.11/5,140.98
  6. Step 6: Final answer
    x = 3,840.75

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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.