Home / 7,731.42-10,668.39-4,587

Finding the Fourth Proportional to 7,731.42, 10,668.39 and 4,587

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Solution

The fourth proportional to 7,731.42, 10,668.39 and 4,587 is: 6,329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.42 : 10,668.39 = 4,587 : x
  2. Step 2: Convert to fraction form
    7,731.42/10,668.39 = 4,587/x
  3. Step 3: Cross multiply
    7,731.42x = 10,668.39 × 4,587
  4. Step 4: Simplify right side
    7,731.42x = 48,935,904.93
  5. Step 5: Solve for x
    x = 48,935,904.93/7,731.42
  6. Step 6: Final answer
    x = 6,329.48

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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.