Home / 5,220.84-7,205.68-3,124.96

Finding the Fourth Proportional to 5,220.84, 7,205.68 and 3,124.96

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Solution

The fourth proportional to 5,220.84, 7,205.68 and 3,124.96 is: 4,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.84 : 7,205.68 = 3,124.96 : x
  2. Step 2: Convert to fraction form
    5,220.84/7,205.68 = 3,124.96/x
  3. Step 3: Cross multiply
    5,220.84x = 7,205.68 × 3,124.96
  4. Step 4: Simplify right side
    5,220.84x = 22,517,461.77
  5. Step 5: Solve for x
    x = 22,517,461.77/5,220.84
  6. Step 6: Final answer
    x = 4,313.00

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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.