Home / 3,638.04-5,457.06-2,909.04

Finding the Fourth Proportional to 3,638.04, 5,457.06 and 2,909.04

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Solution

The fourth proportional to 3,638.04, 5,457.06 and 2,909.04 is: 4,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.04 : 5,457.06 = 2,909.04 : x
  2. Step 2: Convert to fraction form
    3,638.04/5,457.06 = 2,909.04/x
  3. Step 3: Cross multiply
    3,638.04x = 5,457.06 × 2,909.04
  4. Step 4: Simplify right side
    3,638.04x = 15,874,805.82
  5. Step 5: Solve for x
    x = 15,874,805.82/3,638.04
  6. Step 6: Final answer
    x = 4,363.56

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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.