Home / 7,742.20-10,681.62-4,384.64

Finding the Fourth Proportional to 7,742.20, 10,681.62 and 4,384.64

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Solution

The fourth proportional to 7,742.20, 10,681.62 and 4,384.64 is: 6,049.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.20 : 10,681.62 = 4,384.64 : x
  2. Step 2: Convert to fraction form
    7,742.20/10,681.62 = 4,384.64/x
  3. Step 3: Cross multiply
    7,742.20x = 10,681.62 × 4,384.64
  4. Step 4: Simplify right side
    7,742.20x = 46,835,058.32
  5. Step 5: Solve for x
    x = 46,835,058.32/7,742.20
  6. Step 6: Final answer
    x = 6,049.32

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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.