Home / 3,130.23-4,695.50-2,581.40

Finding the Fourth Proportional to 3,130.23, 4,695.50 and 2,581.40

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Solution

The fourth proportional to 3,130.23, 4,695.50 and 2,581.40 is: 3,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.23 : 4,695.50 = 2,581.40 : x
  2. Step 2: Convert to fraction form
    3,130.23/4,695.50 = 2,581.40/x
  3. Step 3: Cross multiply
    3,130.23x = 4,695.50 × 2,581.40
  4. Step 4: Simplify right side
    3,130.23x = 12,120,927.32
  5. Step 5: Solve for x
    x = 12,120,927.32/3,130.23
  6. Step 6: Final answer
    x = 3,872.22

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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.