Home / 7,180.20-9,908.58-4,036.32

Finding the Fourth Proportional to 7,180.20, 9,908.58 and 4,036.32

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Solution

The fourth proportional to 7,180.20, 9,908.58 and 4,036.32 is: 5,570.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.20 : 9,908.58 = 4,036.32 : x
  2. Step 2: Convert to fraction form
    7,180.20/9,908.58 = 4,036.32/x
  3. Step 3: Cross multiply
    7,180.20x = 9,908.58 × 4,036.32
  4. Step 4: Simplify right side
    7,180.20x = 39,994,199.63
  5. Step 5: Solve for x
    x = 39,994,199.63/7,180.20
  6. Step 6: Final answer
    x = 5,570.07

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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.