Home / 6,718.09-9,271.29-3,885.59

Finding the Fourth Proportional to 6,718.09, 9,271.29 and 3,885.59

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Solution

The fourth proportional to 6,718.09, 9,271.29 and 3,885.59 is: 5,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.09 : 9,271.29 = 3,885.59 : x
  2. Step 2: Convert to fraction form
    6,718.09/9,271.29 = 3,885.59/x
  3. Step 3: Cross multiply
    6,718.09x = 9,271.29 × 3,885.59
  4. Step 4: Simplify right side
    6,718.09x = 36,024,431.71
  5. Step 5: Solve for x
    x = 36,024,431.71/6,718.09
  6. Step 6: Final answer
    x = 5,362.30

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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.