Home / 6,718.82-9,271.86-3,886.16

Finding the Fourth Proportional to 6,718.82, 9,271.86 and 3,886.16

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Solution

The fourth proportional to 6,718.82, 9,271.86 and 3,886.16 is: 5,362.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.82 : 9,271.86 = 3,886.16 : x
  2. Step 2: Convert to fraction form
    6,718.82/9,271.86 = 3,886.16/x
  3. Step 3: Cross multiply
    6,718.82x = 9,271.86 × 3,886.16
  4. Step 4: Simplify right side
    6,718.82x = 36,031,931.46
  5. Step 5: Solve for x
    x = 36,031,931.46/6,718.82
  6. Step 6: Final answer
    x = 5,362.84

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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.