Home / 7,685.42-10,605.77-4,328.56

Finding the Fourth Proportional to 7,685.42, 10,605.77 and 4,328.56

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Solution

The fourth proportional to 7,685.42, 10,605.77 and 4,328.56 is: 5,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.42 : 10,605.77 = 4,328.56 : x
  2. Step 2: Convert to fraction form
    7,685.42/10,605.77 = 4,328.56/x
  3. Step 3: Cross multiply
    7,685.42x = 10,605.77 × 4,328.56
  4. Step 4: Simplify right side
    7,685.42x = 45,907,711.79
  5. Step 5: Solve for x
    x = 45,907,711.79/7,685.42
  6. Step 6: Final answer
    x = 5,973.35

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Half scale
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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.