Home / 3,136.62-4,328.52-1,810.30

Finding the Fourth Proportional to 3,136.62, 4,328.52 and 1,810.30

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Solution

The fourth proportional to 3,136.62, 4,328.52 and 1,810.30 is: 2,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.62 : 4,328.52 = 1,810.30 : x
  2. Step 2: Convert to fraction form
    3,136.62/4,328.52 = 1,810.30/x
  3. Step 3: Cross multiply
    3,136.62x = 4,328.52 × 1,810.30
  4. Step 4: Simplify right side
    3,136.62x = 7,835,919.76
  5. Step 5: Solve for x
    x = 7,835,919.76/3,136.62
  6. Step 6: Final answer
    x = 2,498.20

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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.