Home / 7,166.60-10,741.65-2,780.35

Finding the Fourth Proportional to 7,166.60, 10,741.65 and 2,780.35

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Solution

The fourth proportional to 7,166.60, 10,741.65 and 2,780.35 is: 4,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.60 : 10,741.65 = 2,780.35 : x
  2. Step 2: Convert to fraction form
    7,166.60/10,741.65 = 2,780.35/x
  3. Step 3: Cross multiply
    7,166.60x = 10,741.65 × 2,780.35
  4. Step 4: Simplify right side
    7,166.60x = 29,865,509.30
  5. Step 5: Solve for x
    x = 29,865,509.30/7,166.60
  6. Step 6: Final answer
    x = 4,167.32

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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.