Home / 7,271.90-10,902.45-2,887.10

Finding the Fourth Proportional to 7,271.90, 10,902.45 and 2,887.10

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Solution

The fourth proportional to 7,271.90, 10,902.45 and 2,887.10 is: 4,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.90 : 10,902.45 = 2,887.10 : x
  2. Step 2: Convert to fraction form
    7,271.90/10,902.45 = 2,887.10/x
  3. Step 3: Cross multiply
    7,271.90x = 10,902.45 × 2,887.10
  4. Step 4: Simplify right side
    7,271.90x = 31,476,463.40
  5. Step 5: Solve for x
    x = 31,476,463.40/7,271.90
  6. Step 6: Final answer
    x = 4,328.51

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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.