Home / 3,386.43-4,679.28-2,607.21

Finding the Fourth Proportional to 3,386.43, 4,679.28 and 2,607.21

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Solution

The fourth proportional to 3,386.43, 4,679.28 and 2,607.21 is: 3,602.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.43 : 4,679.28 = 2,607.21 : x
  2. Step 2: Convert to fraction form
    3,386.43/4,679.28 = 2,607.21/x
  3. Step 3: Cross multiply
    3,386.43x = 4,679.28 × 2,607.21
  4. Step 4: Simplify right side
    3,386.43x = 12,199,865.61
  5. Step 5: Solve for x
    x = 12,199,865.61/3,386.43
  6. Step 6: Final answer
    x = 3,602.57

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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.