Home / 3,465.21-4,779.03-2,136.61

Finding the Fourth Proportional to 3,465.21, 4,779.03 and 2,136.61

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Solution

The fourth proportional to 3,465.21, 4,779.03 and 2,136.61 is: 2,946.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.21 : 4,779.03 = 2,136.61 : x
  2. Step 2: Convert to fraction form
    3,465.21/4,779.03 = 2,136.61/x
  3. Step 3: Cross multiply
    3,465.21x = 4,779.03 × 2,136.61
  4. Step 4: Simplify right side
    3,465.21x = 10,210,898.37
  5. Step 5: Solve for x
    x = 10,210,898.37/3,465.21
  6. Step 6: Final answer
    x = 2,946.69

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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.