Home / 2,845.32-3,924.93-1,781.24

Finding the Fourth Proportional to 2,845.32, 3,924.93 and 1,781.24

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Solution

The fourth proportional to 2,845.32, 3,924.93 and 1,781.24 is: 2,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,845.32 : 3,924.93 = 1,781.24 : x
  2. Step 2: Convert to fraction form
    2,845.32/3,924.93 = 1,781.24/x
  3. Step 3: Cross multiply
    2,845.32x = 3,924.93 × 1,781.24
  4. Step 4: Simplify right side
    2,845.32x = 6,991,222.69
  5. Step 5: Solve for x
    x = 6,991,222.69/2,845.32
  6. Step 6: Final answer
    x = 2,457.10

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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.