Home / 5,119.38-7,064.55-3,130.02

Finding the Fourth Proportional to 5,119.38, 7,064.55 and 3,130.02

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Solution

The fourth proportional to 5,119.38, 7,064.55 and 3,130.02 is: 4,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.38 : 7,064.55 = 3,130.02 : x
  2. Step 2: Convert to fraction form
    5,119.38/7,064.55 = 3,130.02/x
  3. Step 3: Cross multiply
    5,119.38x = 7,064.55 × 3,130.02
  4. Step 4: Simplify right side
    5,119.38x = 22,112,182.79
  5. Step 5: Solve for x
    x = 22,112,182.79/5,119.38
  6. Step 6: Final answer
    x = 4,319.31

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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.