Home / 2,931.80-4,045.62-1,673.16

Finding the Fourth Proportional to 2,931.80, 4,045.62 and 1,673.16

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Solution

The fourth proportional to 2,931.80, 4,045.62 and 1,673.16 is: 2,308.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.80 : 4,045.62 = 1,673.16 : x
  2. Step 2: Convert to fraction form
    2,931.80/4,045.62 = 1,673.16/x
  3. Step 3: Cross multiply
    2,931.80x = 4,045.62 × 1,673.16
  4. Step 4: Simplify right side
    2,931.80x = 6,768,969.56
  5. Step 5: Solve for x
    x = 6,768,969.56/2,931.80
  6. Step 6: Final answer
    x = 2,308.81

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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.