Home / 4,276.46-6,415.48-1,315.10

Finding the Fourth Proportional to 4,276.46, 6,415.48 and 1,315.10

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Solution

The fourth proportional to 4,276.46, 6,415.48 and 1,315.10 is: 1,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.46 : 6,415.48 = 1,315.10 : x
  2. Step 2: Convert to fraction form
    4,276.46/6,415.48 = 1,315.10/x
  3. Step 3: Cross multiply
    4,276.46x = 6,415.48 × 1,315.10
  4. Step 4: Simplify right side
    4,276.46x = 8,436,997.75
  5. Step 5: Solve for x
    x = 8,436,997.75/4,276.46
  6. Step 6: Final answer
    x = 1,972.89

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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.