Home / 2,385.14-3,577.70-653.76

Finding the Fourth Proportional to 2,385.14, 3,577.70 and 653.76

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Solution

The fourth proportional to 2,385.14, 3,577.70 and 653.76 is: 980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.14 : 3,577.70 = 653.76 : x
  2. Step 2: Convert to fraction form
    2,385.14/3,577.70 = 653.76/x
  3. Step 3: Cross multiply
    2,385.14x = 3,577.70 × 653.76
  4. Step 4: Simplify right side
    2,385.14x = 2,338,958.79
  5. Step 5: Solve for x
    x = 2,338,958.79/2,385.14
  6. Step 6: Final answer
    x = 980.64

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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.