Home / 2,907.12-4,363.75-1,812.24

Finding the Fourth Proportional to 2,907.12, 4,363.75 and 1,812.24

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Solution

The fourth proportional to 2,907.12, 4,363.75 and 1,812.24 is: 2,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.12 : 4,363.75 = 1,812.24 : x
  2. Step 2: Convert to fraction form
    2,907.12/4,363.75 = 1,812.24/x
  3. Step 3: Cross multiply
    2,907.12x = 4,363.75 × 1,812.24
  4. Step 4: Simplify right side
    2,907.12x = 7,908,140.48
  5. Step 5: Solve for x
    x = 7,908,140.48/2,907.12
  6. Step 6: Final answer
    x = 2,720.27

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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.