Home / 2,875.50-4,311.36-1,142.64

Finding the Fourth Proportional to 2,875.50, 4,311.36 and 1,142.64

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Solution

The fourth proportional to 2,875.50, 4,311.36 and 1,142.64 is: 1,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.50 : 4,311.36 = 1,142.64 : x
  2. Step 2: Convert to fraction form
    2,875.50/4,311.36 = 1,142.64/x
  3. Step 3: Cross multiply
    2,875.50x = 4,311.36 × 1,142.64
  4. Step 4: Simplify right side
    2,875.50x = 4,926,332.39
  5. Step 5: Solve for x
    x = 4,926,332.39/2,875.50
  6. Step 6: Final answer
    x = 1,713.21

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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.