Home / 3,746.35-5,620.40-1,281.19

Finding the Fourth Proportional to 3,746.35, 5,620.40 and 1,281.19

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Solution

The fourth proportional to 3,746.35, 5,620.40 and 1,281.19 is: 1,922.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.35 : 5,620.40 = 1,281.19 : x
  2. Step 2: Convert to fraction form
    3,746.35/5,620.40 = 1,281.19/x
  3. Step 3: Cross multiply
    3,746.35x = 5,620.40 × 1,281.19
  4. Step 4: Simplify right side
    3,746.35x = 7,200,765.77
  5. Step 5: Solve for x
    x = 7,200,765.77/3,746.35
  6. Step 6: Final answer
    x = 1,922.08

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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.