Home / 7,030.90-10,551.15-3,138.10

Finding the Fourth Proportional to 7,030.90, 10,551.15 and 3,138.10

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Solution

The fourth proportional to 7,030.90, 10,551.15 and 3,138.10 is: 4,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.90 : 10,551.15 = 3,138.10 : x
  2. Step 2: Convert to fraction form
    7,030.90/10,551.15 = 3,138.10/x
  3. Step 3: Cross multiply
    7,030.90x = 10,551.15 × 3,138.10
  4. Step 4: Simplify right side
    7,030.90x = 33,110,563.82
  5. Step 5: Solve for x
    x = 33,110,563.82/7,030.90
  6. Step 6: Final answer
    x = 4,709.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.