Home / 3,484.13-4,807.76-1,991.79

Finding the Fourth Proportional to 3,484.13, 4,807.76 and 1,991.79

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Solution

The fourth proportional to 3,484.13, 4,807.76 and 1,991.79 is: 2,748.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.13 : 4,807.76 = 1,991.79 : x
  2. Step 2: Convert to fraction form
    3,484.13/4,807.76 = 1,991.79/x
  3. Step 3: Cross multiply
    3,484.13x = 4,807.76 × 1,991.79
  4. Step 4: Simplify right side
    3,484.13x = 9,576,038.33
  5. Step 5: Solve for x
    x = 9,576,038.33/3,484.13
  6. Step 6: Final answer
    x = 2,748.48

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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.