Home / 3,051.23-4,208.04-1,988.58

Finding the Fourth Proportional to 3,051.23, 4,208.04 and 1,988.58

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Solution

The fourth proportional to 3,051.23, 4,208.04 and 1,988.58 is: 2,742.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,051.23 : 4,208.04 = 1,988.58 : x
  2. Step 2: Convert to fraction form
    3,051.23/4,208.04 = 1,988.58/x
  3. Step 3: Cross multiply
    3,051.23x = 4,208.04 × 1,988.58
  4. Step 4: Simplify right side
    3,051.23x = 8,368,024.18
  5. Step 5: Solve for x
    x = 8,368,024.18/3,051.23
  6. Step 6: Final answer
    x = 2,742.51

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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.