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Finding the Fourth Proportional to 2,907, 4,012.59 and 1,859.07

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Solution

The fourth proportional to 2,907, 4,012.59 and 1,859.07 is: 2,566.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907 : 4,012.59 = 1,859.07 : x
  2. Step 2: Convert to fraction form
    2,907/4,012.59 = 1,859.07/x
  3. Step 3: Cross multiply
    2,907x = 4,012.59 × 1,859.07
  4. Step 4: Simplify right side
    2,907x = 7,459,685.69
  5. Step 5: Solve for x
    x = 7,459,685.69/2,907
  6. Step 6: Final answer
    x = 2,566.11

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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.