Home / 3,864.80-5,329.40-3,307.11

Finding the Fourth Proportional to 3,864.80, 5,329.40 and 3,307.11

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Solution

The fourth proportional to 3,864.80, 5,329.40 and 3,307.11 is: 4,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.80 : 5,329.40 = 3,307.11 : x
  2. Step 2: Convert to fraction form
    3,864.80/5,329.40 = 3,307.11/x
  3. Step 3: Cross multiply
    3,864.80x = 5,329.40 × 3,307.11
  4. Step 4: Simplify right side
    3,864.80x = 17,624,895.50
  5. Step 5: Solve for x
    x = 17,624,895.50/3,864.80
  6. Step 6: Final answer
    x = 4,560.37

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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.