Home / 5,137.76-7,090.08-2,899.52

Finding the Fourth Proportional to 5,137.76, 7,090.08 and 2,899.52

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Solution

The fourth proportional to 5,137.76, 7,090.08 and 2,899.52 is: 4,001.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.76 : 7,090.08 = 2,899.52 : x
  2. Step 2: Convert to fraction form
    5,137.76/7,090.08 = 2,899.52/x
  3. Step 3: Cross multiply
    5,137.76x = 7,090.08 × 2,899.52
  4. Step 4: Simplify right side
    5,137.76x = 20,557,828.76
  5. Step 5: Solve for x
    x = 20,557,828.76/5,137.76
  6. Step 6: Final answer
    x = 4,001.32

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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.