Home / 3,875.50-5,346.51-2,281.47

Finding the Fourth Proportional to 3,875.50, 5,346.51 and 2,281.47

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Solution

The fourth proportional to 3,875.50, 5,346.51 and 2,281.47 is: 3,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.50 : 5,346.51 = 2,281.47 : x
  2. Step 2: Convert to fraction form
    3,875.50/5,346.51 = 2,281.47/x
  3. Step 3: Cross multiply
    3,875.50x = 5,346.51 × 2,281.47
  4. Step 4: Simplify right side
    3,875.50x = 12,197,873.56
  5. Step 5: Solve for x
    x = 12,197,873.56/3,875.50
  6. Step 6: Final answer
    x = 3,147.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.