Home / 3,159.16-4,355.40-2,213.68

Finding the Fourth Proportional to 3,159.16, 4,355.40 and 2,213.68

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Solution

The fourth proportional to 3,159.16, 4,355.40 and 2,213.68 is: 3,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.16 : 4,355.40 = 2,213.68 : x
  2. Step 2: Convert to fraction form
    3,159.16/4,355.40 = 2,213.68/x
  3. Step 3: Cross multiply
    3,159.16x = 4,355.40 × 2,213.68
  4. Step 4: Simplify right side
    3,159.16x = 9,641,461.87
  5. Step 5: Solve for x
    x = 9,641,461.87/3,159.16
  6. Step 6: Final answer
    x = 3,051.91

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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.