Home / 4,290.12-5,920.56-3,357

Finding the Fourth Proportional to 4,290.12, 5,920.56 and 3,357

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Solution

The fourth proportional to 4,290.12, 5,920.56 and 3,357 is: 4,632.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,290.12 : 5,920.56 = 3,357 : x
  2. Step 2: Convert to fraction form
    4,290.12/5,920.56 = 3,357/x
  3. Step 3: Cross multiply
    4,290.12x = 5,920.56 × 3,357
  4. Step 4: Simplify right side
    4,290.12x = 19,875,319.92
  5. Step 5: Solve for x
    x = 19,875,319.92/4,290.12
  6. Step 6: Final answer
    x = 4,632.81

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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.