Home / 7,161.29-9,880.20-4,329.53

Finding the Fourth Proportional to 7,161.29, 9,880.20 and 4,329.53

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Solution

The fourth proportional to 7,161.29, 9,880.20 and 4,329.53 is: 5,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.29 : 9,880.20 = 4,329.53 : x
  2. Step 2: Convert to fraction form
    7,161.29/9,880.20 = 4,329.53/x
  3. Step 3: Cross multiply
    7,161.29x = 9,880.20 × 4,329.53
  4. Step 4: Simplify right side
    7,161.29x = 42,776,572.91
  5. Step 5: Solve for x
    x = 42,776,572.91/7,161.29
  6. Step 6: Final answer
    x = 5,973.31

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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.