Home / 7,738.45-10,678.95-4,381.17

Finding the Fourth Proportional to 7,738.45, 10,678.95 and 4,381.17

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Solution

The fourth proportional to 7,738.45, 10,678.95 and 4,381.17 is: 6,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.45 : 10,678.95 = 4,381.17 : x
  2. Step 2: Convert to fraction form
    7,738.45/10,678.95 = 4,381.17/x
  3. Step 3: Cross multiply
    7,738.45x = 10,678.95 × 4,381.17
  4. Step 4: Simplify right side
    7,738.45x = 46,786,284.42
  5. Step 5: Solve for x
    x = 46,786,284.42/7,738.45
  6. Step 6: Final answer
    x = 6,045.95

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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.