Home / 2,910.65-4,354.96-1,785.23

Finding the Fourth Proportional to 2,910.65, 4,354.96 and 1,785.23

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Solution

The fourth proportional to 2,910.65, 4,354.96 and 1,785.23 is: 2,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.65 : 4,354.96 = 1,785.23 : x
  2. Step 2: Convert to fraction form
    2,910.65/4,354.96 = 1,785.23/x
  3. Step 3: Cross multiply
    2,910.65x = 4,354.96 × 1,785.23
  4. Step 4: Simplify right side
    2,910.65x = 7,774,605.24
  5. Step 5: Solve for x
    x = 7,774,605.24/2,910.65
  6. Step 6: Final answer
    x = 2,671.09

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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.