Home / 3,129,429.40-4,314,372.06-2,675,420.62

Finding the Fourth Proportional to 3,129,429.40, 4,314,372.06 and 2,675,420.62

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Solution

The fourth proportional to 3,129,429.40, 4,314,372.06 and 2,675,420.62 is: 3,688,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,429.40 : 4,314,372.06 = 2,675,420.62 : x
  2. Step 2: Convert to fraction form
    3,129,429.40/4,314,372.06 = 2,675,420.62/x
  3. Step 3: Cross multiply
    3,129,429.40x = 4,314,372.06 × 2,675,420.62
  4. Step 4: Simplify right side
    3,129,429.40x = 11,542,759,971,675.88
  5. Step 5: Solve for x
    x = 11,542,759,971,675.88/3,129,429.40
  6. Step 6: Final answer
    x = 3,688,455.15

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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.