Home / 5,703.38-7,870.21-3,185.29

Finding the Fourth Proportional to 5,703.38, 7,870.21 and 3,185.29

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Solution

The fourth proportional to 5,703.38, 7,870.21 and 3,185.29 is: 4,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,703.38 : 7,870.21 = 3,185.29 : x
  2. Step 2: Convert to fraction form
    5,703.38/7,870.21 = 3,185.29/x
  3. Step 3: Cross multiply
    5,703.38x = 7,870.21 × 3,185.29
  4. Step 4: Simplify right side
    5,703.38x = 25,068,921.00
  5. Step 5: Solve for x
    x = 25,068,921.00/5,703.38
  6. Step 6: Final answer
    x = 4,395.45

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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.