Home / 4,315.20-6,471.44-1,392.96

Finding the Fourth Proportional to 4,315.20, 6,471.44 and 1,392.96

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Solution

The fourth proportional to 4,315.20, 6,471.44 and 1,392.96 is: 2,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.20 : 6,471.44 = 1,392.96 : x
  2. Step 2: Convert to fraction form
    4,315.20/6,471.44 = 1,392.96/x
  3. Step 3: Cross multiply
    4,315.20x = 6,471.44 × 1,392.96
  4. Step 4: Simplify right side
    4,315.20x = 9,014,457.06
  5. Step 5: Solve for x
    x = 9,014,457.06/4,315.20
  6. Step 6: Final answer
    x = 2,089.00

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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.