Home / 2,292.40-3,438.60-2,148.40

Finding the Fourth Proportional to 2,292.40, 3,438.60 and 2,148.40

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Solution

The fourth proportional to 2,292.40, 3,438.60 and 2,148.40 is: 3,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.40 : 3,438.60 = 2,148.40 : x
  2. Step 2: Convert to fraction form
    2,292.40/3,438.60 = 2,148.40/x
  3. Step 3: Cross multiply
    2,292.40x = 3,438.60 × 2,148.40
  4. Step 4: Simplify right side
    2,292.40x = 7,387,488.24
  5. Step 5: Solve for x
    x = 7,387,488.24/2,292.40
  6. Step 6: Final answer
    x = 3,222.60

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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.