Home / 7,124.03-10,685.23-1,929.50

Finding the Fourth Proportional to 7,124.03, 10,685.23 and 1,929.50

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Solution

The fourth proportional to 7,124.03, 10,685.23 and 1,929.50 is: 2,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.03 : 10,685.23 = 1,929.50 : x
  2. Step 2: Convert to fraction form
    7,124.03/10,685.23 = 1,929.50/x
  3. Step 3: Cross multiply
    7,124.03x = 10,685.23 × 1,929.50
  4. Step 4: Simplify right side
    7,124.03x = 20,617,151.29
  5. Step 5: Solve for x
    x = 20,617,151.29/7,124.03
  6. Step 6: Final answer
    x = 2,894.03

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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.