Home / 6,456.48-9,688.81-2,758.74

Finding the Fourth Proportional to 6,456.48, 9,688.81 and 2,758.74

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Solution

The fourth proportional to 6,456.48, 9,688.81 and 2,758.74 is: 4,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.48 : 9,688.81 = 2,758.74 : x
  2. Step 2: Convert to fraction form
    6,456.48/9,688.81 = 2,758.74/x
  3. Step 3: Cross multiply
    6,456.48x = 9,688.81 × 2,758.74
  4. Step 4: Simplify right side
    6,456.48x = 26,728,859.26
  5. Step 5: Solve for x
    x = 26,728,859.26/6,456.48
  6. Step 6: Final answer
    x = 4,139.85

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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.