Home / 2,403.11-3,316.28-1,355.15

Finding the Fourth Proportional to 2,403.11, 3,316.28 and 1,355.15

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Solution

The fourth proportional to 2,403.11, 3,316.28 and 1,355.15 is: 1,870.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,403.11 : 3,316.28 = 1,355.15 : x
  2. Step 2: Convert to fraction form
    2,403.11/3,316.28 = 1,355.15/x
  3. Step 3: Cross multiply
    2,403.11x = 3,316.28 × 1,355.15
  4. Step 4: Simplify right side
    2,403.11x = 4,494,033.48
  5. Step 5: Solve for x
    x = 4,494,033.48/2,403.11
  6. Step 6: Final answer
    x = 1,870.09

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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.