Home / 5,139.29-7,092.54-2,900.35

Finding the Fourth Proportional to 5,139.29, 7,092.54 and 2,900.35

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Solution

The fourth proportional to 5,139.29, 7,092.54 and 2,900.35 is: 4,002.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.29 : 7,092.54 = 2,900.35 : x
  2. Step 2: Convert to fraction form
    5,139.29/7,092.54 = 2,900.35/x
  3. Step 3: Cross multiply
    5,139.29x = 7,092.54 × 2,900.35
  4. Step 4: Simplify right side
    5,139.29x = 20,570,798.42
  5. Step 5: Solve for x
    x = 20,570,798.42/5,139.29
  6. Step 6: Final answer
    x = 4,002.66

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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.