Home / 4,122.21-5,688.63-2,259.21

Finding the Fourth Proportional to 4,122.21, 5,688.63 and 2,259.21

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Solution

The fourth proportional to 4,122.21, 5,688.63 and 2,259.21 is: 3,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.21 : 5,688.63 = 2,259.21 : x
  2. Step 2: Convert to fraction form
    4,122.21/5,688.63 = 2,259.21/x
  3. Step 3: Cross multiply
    4,122.21x = 5,688.63 × 2,259.21
  4. Step 4: Simplify right side
    4,122.21x = 12,851,809.78
  5. Step 5: Solve for x
    x = 12,851,809.78/4,122.21
  6. Step 6: Final answer
    x = 3,117.70

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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.