Home / 2,124.04-2,930.68-1,337.60

Finding the Fourth Proportional to 2,124.04, 2,930.68 and 1,337.60

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Solution

The fourth proportional to 2,124.04, 2,930.68 and 1,337.60 is: 1,845.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.04 : 2,930.68 = 1,337.60 : x
  2. Step 2: Convert to fraction form
    2,124.04/2,930.68 = 1,337.60/x
  3. Step 3: Cross multiply
    2,124.04x = 2,930.68 × 1,337.60
  4. Step 4: Simplify right side
    2,124.04x = 3,920,077.57
  5. Step 5: Solve for x
    x = 3,920,077.57/2,124.04
  6. Step 6: Final answer
    x = 1,845.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.