Home / 7,340.49-11,011.28-2,146.77

Finding the Fourth Proportional to 7,340.49, 11,011.28 and 2,146.77

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Solution

The fourth proportional to 7,340.49, 11,011.28 and 2,146.77 is: 3,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.49 : 11,011.28 = 2,146.77 : x
  2. Step 2: Convert to fraction form
    7,340.49/11,011.28 = 2,146.77/x
  3. Step 3: Cross multiply
    7,340.49x = 11,011.28 × 2,146.77
  4. Step 4: Simplify right side
    7,340.49x = 23,638,674.83
  5. Step 5: Solve for x
    x = 23,638,674.83/7,340.49
  6. Step 6: Final answer
    x = 3,220.31

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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.