Home / 2,636.77-3,638.58-1,457.85

Finding the Fourth Proportional to 2,636.77, 3,638.58 and 1,457.85

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Solution

The fourth proportional to 2,636.77, 3,638.58 and 1,457.85 is: 2,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.77 : 3,638.58 = 1,457.85 : x
  2. Step 2: Convert to fraction form
    2,636.77/3,638.58 = 1,457.85/x
  3. Step 3: Cross multiply
    2,636.77x = 3,638.58 × 1,457.85
  4. Step 4: Simplify right side
    2,636.77x = 5,304,503.85
  5. Step 5: Solve for x
    x = 5,304,503.85/2,636.77
  6. Step 6: Final answer
    x = 2,011.74

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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.