Home / 5,188.65-7,159.96-2,830.74

Finding the Fourth Proportional to 5,188.65, 7,159.96 and 2,830.74

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Solution

The fourth proportional to 5,188.65, 7,159.96 and 2,830.74 is: 3,906.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.65 : 7,159.96 = 2,830.74 : x
  2. Step 2: Convert to fraction form
    5,188.65/7,159.96 = 2,830.74/x
  3. Step 3: Cross multiply
    5,188.65x = 7,159.96 × 2,830.74
  4. Step 4: Simplify right side
    5,188.65x = 20,267,985.17
  5. Step 5: Solve for x
    x = 20,267,985.17/5,188.65
  6. Step 6: Final answer
    x = 3,906.22

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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.