Home / 4,490.90-6,739.42-1,569.20

Finding the Fourth Proportional to 4,490.90, 6,739.42 and 1,569.20

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Solution

The fourth proportional to 4,490.90, 6,739.42 and 1,569.20 is: 2,354.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,490.90 : 6,739.42 = 1,569.20 : x
  2. Step 2: Convert to fraction form
    4,490.90/6,739.42 = 1,569.20/x
  3. Step 3: Cross multiply
    4,490.90x = 6,739.42 × 1,569.20
  4. Step 4: Simplify right side
    4,490.90x = 10,575,497.86
  5. Step 5: Solve for x
    x = 10,575,497.86/4,490.90
  6. Step 6: Final answer
    x = 2,354.87

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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.