Home / 7,089.75-10,631.16-4,281.48

Finding the Fourth Proportional to 7,089.75, 10,631.16 and 4,281.48

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Solution

The fourth proportional to 7,089.75, 10,631.16 and 4,281.48 is: 6,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.75 : 10,631.16 = 4,281.48 : x
  2. Step 2: Convert to fraction form
    7,089.75/10,631.16 = 4,281.48/x
  3. Step 3: Cross multiply
    7,089.75x = 10,631.16 × 4,281.48
  4. Step 4: Simplify right side
    7,089.75x = 45,517,098.92
  5. Step 5: Solve for x
    x = 45,517,098.92/7,089.75
  6. Step 6: Final answer
    x = 6,420.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.