Home / 7,710.15-10,639.38-4,725.57

Finding the Fourth Proportional to 7,710.15, 10,639.38 and 4,725.57

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Solution

The fourth proportional to 7,710.15, 10,639.38 and 4,725.57 is: 6,520.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.15 : 10,639.38 = 4,725.57 : x
  2. Step 2: Convert to fraction form
    7,710.15/10,639.38 = 4,725.57/x
  3. Step 3: Cross multiply
    7,710.15x = 10,639.38 × 4,725.57
  4. Step 4: Simplify right side
    7,710.15x = 50,277,134.95
  5. Step 5: Solve for x
    x = 50,277,134.95/7,710.15
  6. Step 6: Final answer
    x = 6,520.90

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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.