Home / 5,137.02-7,089.08-2,779.16

Finding the Fourth Proportional to 5,137.02, 7,089.08 and 2,779.16

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Solution

The fourth proportional to 5,137.02, 7,089.08 and 2,779.16 is: 3,835.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.02 : 7,089.08 = 2,779.16 : x
  2. Step 2: Convert to fraction form
    5,137.02/7,089.08 = 2,779.16/x
  3. Step 3: Cross multiply
    5,137.02x = 7,089.08 × 2,779.16
  4. Step 4: Simplify right side
    5,137.02x = 19,701,638.23
  5. Step 5: Solve for x
    x = 19,701,638.23/5,137.02
  6. Step 6: Final answer
    x = 3,835.23

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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.