Home / 3,807.29-5,708.77-2,779.13

Finding the Fourth Proportional to 3,807.29, 5,708.77 and 2,779.13

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Solution

The fourth proportional to 3,807.29, 5,708.77 and 2,779.13 is: 4,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.29 : 5,708.77 = 2,779.13 : x
  2. Step 2: Convert to fraction form
    3,807.29/5,708.77 = 2,779.13/x
  3. Step 3: Cross multiply
    3,807.29x = 5,708.77 × 2,779.13
  4. Step 4: Simplify right side
    3,807.29x = 15,865,378.48
  5. Step 5: Solve for x
    x = 15,865,378.48/3,807.29
  6. Step 6: Final answer
    x = 4,167.11

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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.