Home / 5,763.60-8,645.40-3,430.80

Finding the Fourth Proportional to 5,763.60, 8,645.40 and 3,430.80

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Solution

The fourth proportional to 5,763.60, 8,645.40 and 3,430.80 is: 5,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,763.60 : 8,645.40 = 3,430.80 : x
  2. Step 2: Convert to fraction form
    5,763.60/8,645.40 = 3,430.80/x
  3. Step 3: Cross multiply
    5,763.60x = 8,645.40 × 3,430.80
  4. Step 4: Simplify right side
    5,763.60x = 29,660,638.32
  5. Step 5: Solve for x
    x = 29,660,638.32/5,763.60
  6. Step 6: Final answer
    x = 5,146.20

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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.