Home / 2,907.08-4,011.71-1,580.81

Finding the Fourth Proportional to 2,907.08, 4,011.71 and 1,580.81

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Solution

The fourth proportional to 2,907.08, 4,011.71 and 1,580.81 is: 2,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.08 : 4,011.71 = 1,580.81 : x
  2. Step 2: Convert to fraction form
    2,907.08/4,011.71 = 1,580.81/x
  3. Step 3: Cross multiply
    2,907.08x = 4,011.71 × 1,580.81
  4. Step 4: Simplify right side
    2,907.08x = 6,341,735.18
  5. Step 5: Solve for x
    x = 6,341,735.18/2,907.08
  6. Step 6: Final answer
    x = 2,181.48

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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.