Home / 3,130.52-4,319.99-1,872.28

Finding the Fourth Proportional to 3,130.52, 4,319.99 and 1,872.28

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Solution

The fourth proportional to 3,130.52, 4,319.99 and 1,872.28 is: 2,583.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.52 : 4,319.99 = 1,872.28 : x
  2. Step 2: Convert to fraction form
    3,130.52/4,319.99 = 1,872.28/x
  3. Step 3: Cross multiply
    3,130.52x = 4,319.99 × 1,872.28
  4. Step 4: Simplify right side
    3,130.52x = 8,088,230.88
  5. Step 5: Solve for x
    x = 8,088,230.88/3,130.52
  6. Step 6: Final answer
    x = 2,583.67

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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.