Home / 7,123.24-10,686.06-1,929.64

Finding the Fourth Proportional to 7,123.24, 10,686.06 and 1,929.64

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Solution

The fourth proportional to 7,123.24, 10,686.06 and 1,929.64 is: 2,894.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.24 : 10,686.06 = 1,929.64 : x
  2. Step 2: Convert to fraction form
    7,123.24/10,686.06 = 1,929.64/x
  3. Step 3: Cross multiply
    7,123.24x = 10,686.06 × 1,929.64
  4. Step 4: Simplify right side
    7,123.24x = 20,620,248.82
  5. Step 5: Solve for x
    x = 20,620,248.82/7,123.24
  6. Step 6: Final answer
    x = 2,894.79

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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.