Home / 2,420.61-3,338.60-1,675.81

Finding the Fourth Proportional to 2,420.61, 3,338.60 and 1,675.81

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Solution

The fourth proportional to 2,420.61, 3,338.60 and 1,675.81 is: 2,311.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.61 : 3,338.60 = 1,675.81 : x
  2. Step 2: Convert to fraction form
    2,420.61/3,338.60 = 1,675.81/x
  3. Step 3: Cross multiply
    2,420.61x = 3,338.60 × 1,675.81
  4. Step 4: Simplify right side
    2,420.61x = 5,594,859.27
  5. Step 5: Solve for x
    x = 5,594,859.27/2,420.61
  6. Step 6: Final answer
    x = 2,311.34

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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.