Home / 7,080.90-10,620.54-1,887.18

Finding the Fourth Proportional to 7,080.90, 10,620.54 and 1,887.18

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Solution

The fourth proportional to 7,080.90, 10,620.54 and 1,887.18 is: 2,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.90 : 10,620.54 = 1,887.18 : x
  2. Step 2: Convert to fraction form
    7,080.90/10,620.54 = 1,887.18/x
  3. Step 3: Cross multiply
    7,080.90x = 10,620.54 × 1,887.18
  4. Step 4: Simplify right side
    7,080.90x = 20,042,870.68
  5. Step 5: Solve for x
    x = 20,042,870.68/7,080.90
  6. Step 6: Final answer
    x = 2,830.55

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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.