Home / 5,032.80-6,948.74-3,145.30

Finding the Fourth Proportional to 5,032.80, 6,948.74 and 3,145.30

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Solution

The fourth proportional to 5,032.80, 6,948.74 and 3,145.30 is: 4,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,032.80 : 6,948.74 = 3,145.30 : x
  2. Step 2: Convert to fraction form
    5,032.80/6,948.74 = 3,145.30/x
  3. Step 3: Cross multiply
    5,032.80x = 6,948.74 × 3,145.30
  4. Step 4: Simplify right side
    5,032.80x = 21,855,871.92
  5. Step 5: Solve for x
    x = 21,855,871.92/5,032.80
  6. Step 6: Final answer
    x = 4,342.69

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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.