Home / 2,830.24-3,903.52-1,781.92

Finding the Fourth Proportional to 2,830.24, 3,903.52 and 1,781.92

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Solution

The fourth proportional to 2,830.24, 3,903.52 and 1,781.92 is: 2,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.24 : 3,903.52 = 1,781.92 : x
  2. Step 2: Convert to fraction form
    2,830.24/3,903.52 = 1,781.92/x
  3. Step 3: Cross multiply
    2,830.24x = 3,903.52 × 1,781.92
  4. Step 4: Simplify right side
    2,830.24x = 6,955,760.36
  5. Step 5: Solve for x
    x = 6,955,760.36/2,830.24
  6. Step 6: Final answer
    x = 2,457.66

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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.