Home / 7,628.84-10,528.89-4,645.34

Finding the Fourth Proportional to 7,628.84, 10,528.89 and 4,645.34

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Solution

The fourth proportional to 7,628.84, 10,528.89 and 4,645.34 is: 6,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.84 : 10,528.89 = 4,645.34 : x
  2. Step 2: Convert to fraction form
    7,628.84/10,528.89 = 4,645.34/x
  3. Step 3: Cross multiply
    7,628.84x = 10,528.89 × 4,645.34
  4. Step 4: Simplify right side
    7,628.84x = 48,910,273.87
  5. Step 5: Solve for x
    x = 48,910,273.87/7,628.84
  6. Step 6: Final answer
    x = 6,411.23

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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.