Home / 5,247.03-7,240.95-2,889.18

Finding the Fourth Proportional to 5,247.03, 7,240.95 and 2,889.18

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Solution

The fourth proportional to 5,247.03, 7,240.95 and 2,889.18 is: 3,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.03 : 7,240.95 = 2,889.18 : x
  2. Step 2: Convert to fraction form
    5,247.03/7,240.95 = 2,889.18/x
  3. Step 3: Cross multiply
    5,247.03x = 7,240.95 × 2,889.18
  4. Step 4: Simplify right side
    5,247.03x = 20,920,407.92
  5. Step 5: Solve for x
    x = 20,920,407.92/5,247.03
  6. Step 6: Final answer
    x = 3,987.10

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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.