Home / 7,156.35-9,875.58-3,969.59

Finding the Fourth Proportional to 7,156.35, 9,875.58 and 3,969.59

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Solution

The fourth proportional to 7,156.35, 9,875.58 and 3,969.59 is: 5,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.35 : 9,875.58 = 3,969.59 : x
  2. Step 2: Convert to fraction form
    7,156.35/9,875.58 = 3,969.59/x
  3. Step 3: Cross multiply
    7,156.35x = 9,875.58 × 3,969.59
  4. Step 4: Simplify right side
    7,156.35x = 39,201,954.23
  5. Step 5: Solve for x
    x = 39,201,954.23/7,156.35
  6. Step 6: Final answer
    x = 5,477.93

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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.