Home / 6,890.63-9,509.00-3,746.79

Finding the Fourth Proportional to 6,890.63, 9,509.00 and 3,746.79

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Solution

The fourth proportional to 6,890.63, 9,509.00 and 3,746.79 is: 5,170.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.63 : 9,509.00 = 3,746.79 : x
  2. Step 2: Convert to fraction form
    6,890.63/9,509.00 = 3,746.79/x
  3. Step 3: Cross multiply
    6,890.63x = 9,509.00 × 3,746.79
  4. Step 4: Simplify right side
    6,890.63x = 35,628,207.38
  5. Step 5: Solve for x
    x = 35,628,207.38/6,890.63
  6. Step 6: Final answer
    x = 5,170.53

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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.