Home / 2,400.32-3,312.14-1,613.81

Finding the Fourth Proportional to 2,400.32, 3,312.14 and 1,613.81

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Solution

The fourth proportional to 2,400.32, 3,312.14 and 1,613.81 is: 2,226.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.32 : 3,312.14 = 1,613.81 : x
  2. Step 2: Convert to fraction form
    2,400.32/3,312.14 = 1,613.81/x
  3. Step 3: Cross multiply
    2,400.32x = 3,312.14 × 1,613.81
  4. Step 4: Simplify right side
    2,400.32x = 5,345,140.02
  5. Step 5: Solve for x
    x = 5,345,140.02/2,400.32
  6. Step 6: Final answer
    x = 2,226.85

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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.