Home / 7,080.18-9,771.11-4,688.61

Finding the Fourth Proportional to 7,080.18, 9,771.11 and 4,688.61

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Solution

The fourth proportional to 7,080.18, 9,771.11 and 4,688.61 is: 6,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.18 : 9,771.11 = 4,688.61 : x
  2. Step 2: Convert to fraction form
    7,080.18/9,771.11 = 4,688.61/x
  3. Step 3: Cross multiply
    7,080.18x = 9,771.11 × 4,688.61
  4. Step 4: Simplify right side
    7,080.18x = 45,812,895.85
  5. Step 5: Solve for x
    x = 45,812,895.85/7,080.18
  6. Step 6: Final answer
    x = 6,470.58

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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.