Home / 5,207.55-7,185.51-2,938.74

Finding the Fourth Proportional to 5,207.55, 7,185.51 and 2,938.74

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Solution

The fourth proportional to 5,207.55, 7,185.51 and 2,938.74 is: 4,054.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,207.55 : 7,185.51 = 2,938.74 : x
  2. Step 2: Convert to fraction form
    5,207.55/7,185.51 = 2,938.74/x
  3. Step 3: Cross multiply
    5,207.55x = 7,185.51 × 2,938.74
  4. Step 4: Simplify right side
    5,207.55x = 21,116,345.66
  5. Step 5: Solve for x
    x = 21,116,345.66/5,207.55
  6. Step 6: Final answer
    x = 4,054.95

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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.