Home / 3,389.28-4,685.76-2,503.68

Finding the Fourth Proportional to 3,389.28, 4,685.76 and 2,503.68

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Solution

The fourth proportional to 3,389.28, 4,685.76 and 2,503.68 is: 3,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,389.28 : 4,685.76 = 2,503.68 : x
  2. Step 2: Convert to fraction form
    3,389.28/4,685.76 = 2,503.68/x
  3. Step 3: Cross multiply
    3,389.28x = 4,685.76 × 2,503.68
  4. Step 4: Simplify right side
    3,389.28x = 11,731,643.60
  5. Step 5: Solve for x
    x = 11,731,643.60/3,389.28
  6. Step 6: Final answer
    x = 3,461.40

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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.