Home / 5,918.20-8,870.10-2,627.80

Finding the Fourth Proportional to 5,918.20, 8,870.10 and 2,627.80

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Solution

The fourth proportional to 5,918.20, 8,870.10 and 2,627.80 is: 3,938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.20 : 8,870.10 = 2,627.80 : x
  2. Step 2: Convert to fraction form
    5,918.20/8,870.10 = 2,627.80/x
  3. Step 3: Cross multiply
    5,918.20x = 8,870.10 × 2,627.80
  4. Step 4: Simplify right side
    5,918.20x = 23,308,848.78
  5. Step 5: Solve for x
    x = 23,308,848.78/5,918.20
  6. Step 6: Final answer
    x = 3,938.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.