Home / 5,637.87-7,779.98-3,119.92

Finding the Fourth Proportional to 5,637.87, 7,779.98 and 3,119.92

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Solution

The fourth proportional to 5,637.87, 7,779.98 and 3,119.92 is: 4,305.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.87 : 7,779.98 = 3,119.92 : x
  2. Step 2: Convert to fraction form
    5,637.87/7,779.98 = 3,119.92/x
  3. Step 3: Cross multiply
    5,637.87x = 7,779.98 × 3,119.92
  4. Step 4: Simplify right side
    5,637.87x = 24,272,903.55
  5. Step 5: Solve for x
    x = 24,272,903.55/5,637.87
  6. Step 6: Final answer
    x = 4,305.33

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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.