Home / 3,670.47-5,505.71-1,330.79

Finding the Fourth Proportional to 3,670.47, 5,505.71 and 1,330.79

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Solution

The fourth proportional to 3,670.47, 5,505.71 and 1,330.79 is: 1,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.47 : 5,505.71 = 1,330.79 : x
  2. Step 2: Convert to fraction form
    3,670.47/5,505.71 = 1,330.79/x
  3. Step 3: Cross multiply
    3,670.47x = 5,505.71 × 1,330.79
  4. Step 4: Simplify right side
    3,670.47x = 7,326,909.63
  5. Step 5: Solve for x
    x = 7,326,909.63/3,670.47
  6. Step 6: Final answer
    x = 1,996.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.