Home / 7,140.71-10,711.52-2,209.93

Finding the Fourth Proportional to 7,140.71, 10,711.52 and 2,209.93

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Solution

The fourth proportional to 7,140.71, 10,711.52 and 2,209.93 is: 3,315.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.71 : 10,711.52 = 2,209.93 : x
  2. Step 2: Convert to fraction form
    7,140.71/10,711.52 = 2,209.93/x
  3. Step 3: Cross multiply
    7,140.71x = 10,711.52 × 2,209.93
  4. Step 4: Simplify right side
    7,140.71x = 23,671,725.12
  5. Step 5: Solve for x
    x = 23,671,725.12/7,140.71
  6. Step 6: Final answer
    x = 3,315.04

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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.