Home / 6,985.36-9,639.66-3,841.48

Finding the Fourth Proportional to 6,985.36, 9,639.66 and 3,841.48

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Solution

The fourth proportional to 6,985.36, 9,639.66 and 3,841.48 is: 5,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.36 : 9,639.66 = 3,841.48 : x
  2. Step 2: Convert to fraction form
    6,985.36/9,639.66 = 3,841.48/x
  3. Step 3: Cross multiply
    6,985.36x = 9,639.66 × 3,841.48
  4. Step 4: Simplify right side
    6,985.36x = 37,030,561.10
  5. Step 5: Solve for x
    x = 37,030,561.10/6,985.36
  6. Step 6: Final answer
    x = 5,301.17

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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.