Home / 7,124.04-10,686.03-1,929.92

Finding the Fourth Proportional to 7,124.04, 10,686.03 and 1,929.92

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Solution

The fourth proportional to 7,124.04, 10,686.03 and 1,929.92 is: 2,894.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.04 : 10,686.03 = 1,929.92 : x
  2. Step 2: Convert to fraction form
    7,124.04/10,686.03 = 1,929.92/x
  3. Step 3: Cross multiply
    7,124.04x = 10,686.03 × 1,929.92
  4. Step 4: Simplify right side
    7,124.04x = 20,623,129.59
  5. Step 5: Solve for x
    x = 20,623,129.59/7,124.04
  6. Step 6: Final answer
    x = 2,894.86

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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.