Home / 2,907.29-4,012.09-1,580.99

Finding the Fourth Proportional to 2,907.29, 4,012.09 and 1,580.99

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Solution

The fourth proportional to 2,907.29, 4,012.09 and 1,580.99 is: 2,181.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.29 : 4,012.09 = 1,580.99 : x
  2. Step 2: Convert to fraction form
    2,907.29/4,012.09 = 1,580.99/x
  3. Step 3: Cross multiply
    2,907.29x = 4,012.09 × 1,580.99
  4. Step 4: Simplify right side
    2,907.29x = 6,343,050.16
  5. Step 5: Solve for x
    x = 6,343,050.16/2,907.29
  6. Step 6: Final answer
    x = 2,181.77

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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.