Home / 5,669.60-7,807.92-4,095.20

Finding the Fourth Proportional to 5,669.60, 7,807.92 and 4,095.20

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Solution

The fourth proportional to 5,669.60, 7,807.92 and 4,095.20 is: 5,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,669.60 : 7,807.92 = 4,095.20 : x
  2. Step 2: Convert to fraction form
    5,669.60/7,807.92 = 4,095.20/x
  3. Step 3: Cross multiply
    5,669.60x = 7,807.92 × 4,095.20
  4. Step 4: Simplify right side
    5,669.60x = 31,974,993.98
  5. Step 5: Solve for x
    x = 31,974,993.98/5,669.60
  6. Step 6: Final answer
    x = 5,639.73

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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.