Home / 6,278.84-8,665.14-3,484.40

Finding the Fourth Proportional to 6,278.84, 8,665.14 and 3,484.40

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Solution

The fourth proportional to 6,278.84, 8,665.14 and 3,484.40 is: 4,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278.84 : 8,665.14 = 3,484.40 : x
  2. Step 2: Convert to fraction form
    6,278.84/8,665.14 = 3,484.40/x
  3. Step 3: Cross multiply
    6,278.84x = 8,665.14 × 3,484.40
  4. Step 4: Simplify right side
    6,278.84x = 30,192,813.82
  5. Step 5: Solve for x
    x = 30,192,813.82/6,278.84
  6. Step 6: Final answer
    x = 4,808.66

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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.