Home / 3,620.68-5,430.93-1,155.65

Finding the Fourth Proportional to 3,620.68, 5,430.93 and 1,155.65

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Solution

The fourth proportional to 3,620.68, 5,430.93 and 1,155.65 is: 1,733.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.68 : 5,430.93 = 1,155.65 : x
  2. Step 2: Convert to fraction form
    3,620.68/5,430.93 = 1,155.65/x
  3. Step 3: Cross multiply
    3,620.68x = 5,430.93 × 1,155.65
  4. Step 4: Simplify right side
    3,620.68x = 6,276,248.48
  5. Step 5: Solve for x
    x = 6,276,248.48/3,620.68
  6. Step 6: Final answer
    x = 1,733.44

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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.