Home / 5,130.74-7,695.84-2,011.31

Finding the Fourth Proportional to 5,130.74, 7,695.84 and 2,011.31

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Solution

The fourth proportional to 5,130.74, 7,695.84 and 2,011.31 is: 3,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.74 : 7,695.84 = 2,011.31 : x
  2. Step 2: Convert to fraction form
    5,130.74/7,695.84 = 2,011.31/x
  3. Step 3: Cross multiply
    5,130.74x = 7,695.84 × 2,011.31
  4. Step 4: Simplify right side
    5,130.74x = 15,478,679.26
  5. Step 5: Solve for x
    x = 15,478,679.26/5,130.74
  6. Step 6: Final answer
    x = 3,016.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.