Home / 5,880.88-8,821.98-1,985.60

Finding the Fourth Proportional to 5,880.88, 8,821.98 and 1,985.60

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Solution

The fourth proportional to 5,880.88, 8,821.98 and 1,985.60 is: 2,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,880.88 : 8,821.98 = 1,985.60 : x
  2. Step 2: Convert to fraction form
    5,880.88/8,821.98 = 1,985.60/x
  3. Step 3: Cross multiply
    5,880.88x = 8,821.98 × 1,985.60
  4. Step 4: Simplify right side
    5,880.88x = 17,516,923.49
  5. Step 5: Solve for x
    x = 17,516,923.49/5,880.88
  6. Step 6: Final answer
    x = 2,978.62

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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.