Home / 7,123.51-10,689.09-2,966.39

Finding the Fourth Proportional to 7,123.51, 10,689.09 and 2,966.39

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Solution

The fourth proportional to 7,123.51, 10,689.09 and 2,966.39 is: 4,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.51 : 10,689.09 = 2,966.39 : x
  2. Step 2: Convert to fraction form
    7,123.51/10,689.09 = 2,966.39/x
  3. Step 3: Cross multiply
    7,123.51x = 10,689.09 × 2,966.39
  4. Step 4: Simplify right side
    7,123.51x = 31,708,009.69
  5. Step 5: Solve for x
    x = 31,708,009.69/7,123.51
  6. Step 6: Final answer
    x = 4,451.18

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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.