Home / 7,639.79-10,542.33-4,655.25

Finding the Fourth Proportional to 7,639.79, 10,542.33 and 4,655.25

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Solution

The fourth proportional to 7,639.79, 10,542.33 and 4,655.25 is: 6,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.79 : 10,542.33 = 4,655.25 : x
  2. Step 2: Convert to fraction form
    7,639.79/10,542.33 = 4,655.25/x
  3. Step 3: Cross multiply
    7,639.79x = 10,542.33 × 4,655.25
  4. Step 4: Simplify right side
    7,639.79x = 49,077,181.73
  5. Step 5: Solve for x
    x = 49,077,181.73/7,639.79
  6. Step 6: Final answer
    x = 6,423.90

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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.