Home / 5,136.88-7,088.90-2,779.01

Finding the Fourth Proportional to 5,136.88, 7,088.90 and 2,779.01

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Solution

The fourth proportional to 5,136.88, 7,088.90 and 2,779.01 is: 3,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.88 : 7,088.90 = 2,779.01 : x
  2. Step 2: Convert to fraction form
    5,136.88/7,088.90 = 2,779.01/x
  3. Step 3: Cross multiply
    5,136.88x = 7,088.90 × 2,779.01
  4. Step 4: Simplify right side
    5,136.88x = 19,700,123.99
  5. Step 5: Solve for x
    x = 19,700,123.99/5,136.88
  6. Step 6: Final answer
    x = 3,835.04

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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.