Home / 5,136.91-7,088.92-2,779.05

Finding the Fourth Proportional to 5,136.91, 7,088.92 and 2,779.05

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Solution

The fourth proportional to 5,136.91, 7,088.92 and 2,779.05 is: 3,835.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.91 : 7,088.92 = 2,779.05 : x
  2. Step 2: Convert to fraction form
    5,136.91/7,088.92 = 2,779.05/x
  3. Step 3: Cross multiply
    5,136.91x = 7,088.92 × 2,779.05
  4. Step 4: Simplify right side
    5,136.91x = 19,700,441.93
  5. Step 5: Solve for x
    x = 19,700,441.93/5,136.91
  6. Step 6: Final answer
    x = 3,835.08

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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.