Home / 2,875.24-4,311.42-1,142.68

Finding the Fourth Proportional to 2,875.24, 4,311.42 and 1,142.68

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Solution

The fourth proportional to 2,875.24, 4,311.42 and 1,142.68 is: 1,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.24 : 4,311.42 = 1,142.68 : x
  2. Step 2: Convert to fraction form
    2,875.24/4,311.42 = 1,142.68/x
  3. Step 3: Cross multiply
    2,875.24x = 4,311.42 × 1,142.68
  4. Step 4: Simplify right side
    2,875.24x = 4,926,573.41
  5. Step 5: Solve for x
    x = 4,926,573.41/2,875.24
  6. Step 6: Final answer
    x = 1,713.45

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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.