Home / 6,880.35-10,318.50-2,931.57

Finding the Fourth Proportional to 6,880.35, 10,318.50 and 2,931.57

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Solution

The fourth proportional to 6,880.35, 10,318.50 and 2,931.57 is: 4,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.35 : 10,318.50 = 2,931.57 : x
  2. Step 2: Convert to fraction form
    6,880.35/10,318.50 = 2,931.57/x
  3. Step 3: Cross multiply
    6,880.35x = 10,318.50 × 2,931.57
  4. Step 4: Simplify right side
    6,880.35x = 30,249,405.05
  5. Step 5: Solve for x
    x = 30,249,405.05/6,880.35
  6. Step 6: Final answer
    x = 4,396.49

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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.