Home / 5,130.20-7,695.30-1,843.40

Finding the Fourth Proportional to 5,130.20, 7,695.30 and 1,843.40

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Solution

The fourth proportional to 5,130.20, 7,695.30 and 1,843.40 is: 2,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.20 : 7,695.30 = 1,843.40 : x
  2. Step 2: Convert to fraction form
    5,130.20/7,695.30 = 1,843.40/x
  3. Step 3: Cross multiply
    5,130.20x = 7,695.30 × 1,843.40
  4. Step 4: Simplify right side
    5,130.20x = 14,185,516.02
  5. Step 5: Solve for x
    x = 14,185,516.02/5,130.20
  6. Step 6: Final answer
    x = 2,765.10

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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.