Home / 2,365.37-3,264.71-1,421.21

Finding the Fourth Proportional to 2,365.37, 3,264.71 and 1,421.21

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Solution

The fourth proportional to 2,365.37, 3,264.71 and 1,421.21 is: 1,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,365.37 : 3,264.71 = 1,421.21 : x
  2. Step 2: Convert to fraction form
    2,365.37/3,264.71 = 1,421.21/x
  3. Step 3: Cross multiply
    2,365.37x = 3,264.71 × 1,421.21
  4. Step 4: Simplify right side
    2,365.37x = 4,639,838.50
  5. Step 5: Solve for x
    x = 4,639,838.50/2,365.37
  6. Step 6: Final answer
    x = 1,961.57

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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.