Home / 3,210.80-4,812.91-1,542.42

Finding the Fourth Proportional to 3,210.80, 4,812.91 and 1,542.42

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Solution

The fourth proportional to 3,210.80, 4,812.91 and 1,542.42 is: 2,312.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.80 : 4,812.91 = 1,542.42 : x
  2. Step 2: Convert to fraction form
    3,210.80/4,812.91 = 1,542.42/x
  3. Step 3: Cross multiply
    3,210.80x = 4,812.91 × 1,542.42
  4. Step 4: Simplify right side
    3,210.80x = 7,423,539.54
  5. Step 5: Solve for x
    x = 7,423,539.54/3,210.80
  6. Step 6: Final answer
    x = 2,312.05

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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.