Home / 5,688.84-7,858.17-4,378.98

Finding the Fourth Proportional to 5,688.84, 7,858.17 and 4,378.98

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Solution

The fourth proportional to 5,688.84, 7,858.17 and 4,378.98 is: 6,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.84 : 7,858.17 = 4,378.98 : x
  2. Step 2: Convert to fraction form
    5,688.84/7,858.17 = 4,378.98/x
  3. Step 3: Cross multiply
    5,688.84x = 7,858.17 × 4,378.98
  4. Step 4: Simplify right side
    5,688.84x = 34,410,769.27
  5. Step 5: Solve for x
    x = 34,410,769.27/5,688.84
  6. Step 6: Final answer
    x = 6,048.82

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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.