Home / 7,374.78-10,176.30-4,186.91

Finding the Fourth Proportional to 7,374.78, 10,176.30 and 4,186.91

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Solution

The fourth proportional to 7,374.78, 10,176.30 and 4,186.91 is: 5,777.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,374.78 : 10,176.30 = 4,186.91 : x
  2. Step 2: Convert to fraction form
    7,374.78/10,176.30 = 4,186.91/x
  3. Step 3: Cross multiply
    7,374.78x = 10,176.30 × 4,186.91
  4. Step 4: Simplify right side
    7,374.78x = 42,607,277.67
  5. Step 5: Solve for x
    x = 42,607,277.67/7,374.78
  6. Step 6: Final answer
    x = 5,777.43

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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.