Home / 5,140.95-7,094.55-2,783.13

Finding the Fourth Proportional to 5,140.95, 7,094.55 and 2,783.13

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Solution

The fourth proportional to 5,140.95, 7,094.55 and 2,783.13 is: 3,840.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.95 : 7,094.55 = 2,783.13 : x
  2. Step 2: Convert to fraction form
    5,140.95/7,094.55 = 2,783.13/x
  3. Step 3: Cross multiply
    5,140.95x = 7,094.55 × 2,783.13
  4. Step 4: Simplify right side
    5,140.95x = 19,745,054.94
  5. Step 5: Solve for x
    x = 19,745,054.94/5,140.95
  6. Step 6: Final answer
    x = 3,840.74

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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.