Home / 7,498.20-11,238.30-3,113.40

Finding the Fourth Proportional to 7,498.20, 11,238.30 and 3,113.40

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Solution

The fourth proportional to 7,498.20, 11,238.30 and 3,113.40 is: 4,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,498.20 : 11,238.30 = 3,113.40 : x
  2. Step 2: Convert to fraction form
    7,498.20/11,238.30 = 3,113.40/x
  3. Step 3: Cross multiply
    7,498.20x = 11,238.30 × 3,113.40
  4. Step 4: Simplify right side
    7,498.20x = 34,989,323.22
  5. Step 5: Solve for x
    x = 34,989,323.22/7,498.20
  6. Step 6: Final answer
    x = 4,666.36

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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.