Home / 4,642.28-6,969.35-3,988.34

Finding the Fourth Proportional to 4,642.28, 6,969.35 and 3,988.34

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Solution

The fourth proportional to 4,642.28, 6,969.35 and 3,988.34 is: 5,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,642.28 : 6,969.35 = 3,988.34 : x
  2. Step 2: Convert to fraction form
    4,642.28/6,969.35 = 3,988.34/x
  3. Step 3: Cross multiply
    4,642.28x = 6,969.35 × 3,988.34
  4. Step 4: Simplify right side
    4,642.28x = 27,796,137.38
  5. Step 5: Solve for x
    x = 27,796,137.38/4,642.28
  6. Step 6: Final answer
    x = 5,987.60

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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.