Home / 7,038.12-9,712.58-3,851.44

Finding the Fourth Proportional to 7,038.12, 9,712.58 and 3,851.44

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Solution

The fourth proportional to 7,038.12, 9,712.58 and 3,851.44 is: 5,314.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,038.12 : 9,712.58 = 3,851.44 : x
  2. Step 2: Convert to fraction form
    7,038.12/9,712.58 = 3,851.44/x
  3. Step 3: Cross multiply
    7,038.12x = 9,712.58 × 3,851.44
  4. Step 4: Simplify right side
    7,038.12x = 37,407,419.12
  5. Step 5: Solve for x
    x = 37,407,419.12/7,038.12
  6. Step 6: Final answer
    x = 5,314.97

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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.