Home / 7,130.10-10,695.15-2,199.30

Finding the Fourth Proportional to 7,130.10, 10,695.15 and 2,199.30

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Solution

The fourth proportional to 7,130.10, 10,695.15 and 2,199.30 is: 3,298.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130.10 : 10,695.15 = 2,199.30 : x
  2. Step 2: Convert to fraction form
    7,130.10/10,695.15 = 2,199.30/x
  3. Step 3: Cross multiply
    7,130.10x = 10,695.15 × 2,199.30
  4. Step 4: Simplify right side
    7,130.10x = 23,521,843.40
  5. Step 5: Solve for x
    x = 23,521,843.40/7,130.10
  6. Step 6: Final answer
    x = 3,298.95

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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.