Home / 2,420.26-3,332.50-2,119.77

Finding the Fourth Proportional to 2,420.26, 3,332.50 and 2,119.77

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Solution

The fourth proportional to 2,420.26, 3,332.50 and 2,119.77 is: 2,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.26 : 3,332.50 = 2,119.77 : x
  2. Step 2: Convert to fraction form
    2,420.26/3,332.50 = 2,119.77/x
  3. Step 3: Cross multiply
    2,420.26x = 3,332.50 × 2,119.77
  4. Step 4: Simplify right side
    2,420.26x = 7,064,133.53
  5. Step 5: Solve for x
    x = 7,064,133.53/2,420.26
  6. Step 6: Final answer
    x = 2,918.75

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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.