Home / 3,315.87-4,973.55-1,928.32

Finding the Fourth Proportional to 3,315.87, 4,973.55 and 1,928.32

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Solution

The fourth proportional to 3,315.87, 4,973.55 and 1,928.32 is: 2,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.87 : 4,973.55 = 1,928.32 : x
  2. Step 2: Convert to fraction form
    3,315.87/4,973.55 = 1,928.32/x
  3. Step 3: Cross multiply
    3,315.87x = 4,973.55 × 1,928.32
  4. Step 4: Simplify right side
    3,315.87x = 9,590,581.91
  5. Step 5: Solve for x
    x = 9,590,581.91/3,315.87
  6. Step 6: Final answer
    x = 2,892.33

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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.