Home / 6,483.20-9,729.60-2,590.40

Finding the Fourth Proportional to 6,483.20, 9,729.60 and 2,590.40

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Solution

The fourth proportional to 6,483.20, 9,729.60 and 2,590.40 is: 3,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,483.20 : 9,729.60 = 2,590.40 : x
  2. Step 2: Convert to fraction form
    6,483.20/9,729.60 = 2,590.40/x
  3. Step 3: Cross multiply
    6,483.20x = 9,729.60 × 2,590.40
  4. Step 4: Simplify right side
    6,483.20x = 25,203,555.84
  5. Step 5: Solve for x
    x = 25,203,555.84/6,483.20
  6. Step 6: Final answer
    x = 3,887.52

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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.