Home / 7,520.61-10,380.52-4,377.40

Finding the Fourth Proportional to 7,520.61, 10,380.52 and 4,377.40

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Solution

The fourth proportional to 7,520.61, 10,380.52 and 4,377.40 is: 6,042.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.61 : 10,380.52 = 4,377.40 : x
  2. Step 2: Convert to fraction form
    7,520.61/10,380.52 = 4,377.40/x
  3. Step 3: Cross multiply
    7,520.61x = 10,380.52 × 4,377.40
  4. Step 4: Simplify right side
    7,520.61x = 45,439,688.25
  5. Step 5: Solve for x
    x = 45,439,688.25/7,520.61
  6. Step 6: Final answer
    x = 6,042.02

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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.