Home / 3,875.12-5,347.05-2,281.85

Finding the Fourth Proportional to 3,875.12, 5,347.05 and 2,281.85

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Solution

The fourth proportional to 3,875.12, 5,347.05 and 2,281.85 is: 3,148.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.12 : 5,347.05 = 2,281.85 : x
  2. Step 2: Convert to fraction form
    3,875.12/5,347.05 = 2,281.85/x
  3. Step 3: Cross multiply
    3,875.12x = 5,347.05 × 2,281.85
  4. Step 4: Simplify right side
    3,875.12x = 12,201,166.04
  5. Step 5: Solve for x
    x = 12,201,166.04/3,875.12
  6. Step 6: Final answer
    x = 3,148.59

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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.