Home / 3,036.07-4,189.81-1,709.76

Finding the Fourth Proportional to 3,036.07, 4,189.81 and 1,709.76

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Solution

The fourth proportional to 3,036.07, 4,189.81 and 1,709.76 is: 2,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.07 : 4,189.81 = 1,709.76 : x
  2. Step 2: Convert to fraction form
    3,036.07/4,189.81 = 1,709.76/x
  3. Step 3: Cross multiply
    3,036.07x = 4,189.81 × 1,709.76
  4. Step 4: Simplify right side
    3,036.07x = 7,163,569.55
  5. Step 5: Solve for x
    x = 7,163,569.55/3,036.07
  6. Step 6: Final answer
    x = 2,359.49

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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.