Home / 3,212.31-4,430.79-2,417.70

Finding the Fourth Proportional to 3,212.31, 4,430.79 and 2,417.70

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Solution

The fourth proportional to 3,212.31, 4,430.79 and 2,417.70 is: 3,334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.31 : 4,430.79 = 2,417.70 : x
  2. Step 2: Convert to fraction form
    3,212.31/4,430.79 = 2,417.70/x
  3. Step 3: Cross multiply
    3,212.31x = 4,430.79 × 2,417.70
  4. Step 4: Simplify right side
    3,212.31x = 10,712,320.98
  5. Step 5: Solve for x
    x = 10,712,320.98/3,212.31
  6. Step 6: Final answer
    x = 3,334.77

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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.