Home / 5,100.30-7,038.75-2,862.33

Finding the Fourth Proportional to 5,100.30, 7,038.75 and 2,862.33

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Solution

The fourth proportional to 5,100.30, 7,038.75 and 2,862.33 is: 3,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.30 : 7,038.75 = 2,862.33 : x
  2. Step 2: Convert to fraction form
    5,100.30/7,038.75 = 2,862.33/x
  3. Step 3: Cross multiply
    5,100.30x = 7,038.75 × 2,862.33
  4. Step 4: Simplify right side
    5,100.30x = 20,147,225.29
  5. Step 5: Solve for x
    x = 20,147,225.29/5,100.30
  6. Step 6: Final answer
    x = 3,950.20

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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.