Home / 4,312.32-6,471.58-2,121.68

Finding the Fourth Proportional to 4,312.32, 6,471.58 and 2,121.68

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Solution

The fourth proportional to 4,312.32, 6,471.58 and 2,121.68 is: 3,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,312.32 : 6,471.58 = 2,121.68 : x
  2. Step 2: Convert to fraction form
    4,312.32/6,471.58 = 2,121.68/x
  3. Step 3: Cross multiply
    4,312.32x = 6,471.58 × 2,121.68
  4. Step 4: Simplify right side
    4,312.32x = 13,730,621.85
  5. Step 5: Solve for x
    x = 13,730,621.85/4,312.32
  6. Step 6: Final answer
    x = 3,184.05

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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.