Home / 2,385.32-3,577.56-653.72

Finding the Fourth Proportional to 2,385.32, 3,577.56 and 653.72

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Solution

The fourth proportional to 2,385.32, 3,577.56 and 653.72 is: 980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.32 : 3,577.56 = 653.72 : x
  2. Step 2: Convert to fraction form
    2,385.32/3,577.56 = 653.72/x
  3. Step 3: Cross multiply
    2,385.32x = 3,577.56 × 653.72
  4. Step 4: Simplify right side
    2,385.32x = 2,338,722.52
  5. Step 5: Solve for x
    x = 2,338,722.52/2,385.32
  6. Step 6: Final answer
    x = 980.46

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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.