Home / 3,136.60-4,328.50-1,739.36

Finding the Fourth Proportional to 3,136.60, 4,328.50 and 1,739.36

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Solution

The fourth proportional to 3,136.60, 4,328.50 and 1,739.36 is: 2,400.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.60 : 4,328.50 = 1,739.36 : x
  2. Step 2: Convert to fraction form
    3,136.60/4,328.50 = 1,739.36/x
  3. Step 3: Cross multiply
    3,136.60x = 4,328.50 × 1,739.36
  4. Step 4: Simplify right side
    3,136.60x = 7,528,819.76
  5. Step 5: Solve for x
    x = 7,528,819.76/3,136.60
  6. Step 6: Final answer
    x = 2,400.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.