Home / 6,869.80-10,307.04-2,920.89

Finding the Fourth Proportional to 6,869.80, 10,307.04 and 2,920.89

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Solution

The fourth proportional to 6,869.80, 10,307.04 and 2,920.89 is: 4,382.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.80 : 10,307.04 = 2,920.89 : x
  2. Step 2: Convert to fraction form
    6,869.80/10,307.04 = 2,920.89/x
  3. Step 3: Cross multiply
    6,869.80x = 10,307.04 × 2,920.89
  4. Step 4: Simplify right side
    6,869.80x = 30,105,715.46
  5. Step 5: Solve for x
    x = 30,105,715.46/6,869.80
  6. Step 6: Final answer
    x = 4,382.33

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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.