Home / 7,622.91-10,520.53-4,639.17

Finding the Fourth Proportional to 7,622.91, 10,520.53 and 4,639.17

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Solution

The fourth proportional to 7,622.91, 10,520.53 and 4,639.17 is: 6,402.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.91 : 10,520.53 = 4,639.17 : x
  2. Step 2: Convert to fraction form
    7,622.91/10,520.53 = 4,639.17/x
  3. Step 3: Cross multiply
    7,622.91x = 10,520.53 × 4,639.17
  4. Step 4: Simplify right side
    7,622.91x = 48,806,581.11
  5. Step 5: Solve for x
    x = 48,806,581.11/7,622.91
  6. Step 6: Final answer
    x = 6,402.62

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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.