Home / 4,875.40-7,310.40-2,101.60

Finding the Fourth Proportional to 4,875.40, 7,310.40 and 2,101.60

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Solution

The fourth proportional to 4,875.40, 7,310.40 and 2,101.60 is: 3,151.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,875.40 : 7,310.40 = 2,101.60 : x
  2. Step 2: Convert to fraction form
    4,875.40/7,310.40 = 2,101.60/x
  3. Step 3: Cross multiply
    4,875.40x = 7,310.40 × 2,101.60
  4. Step 4: Simplify right side
    4,875.40x = 15,363,536.64
  5. Step 5: Solve for x
    x = 15,363,536.64/4,875.40
  6. Step 6: Final answer
    x = 3,151.24

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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.