Home / 3,315.20-4,574.81-1,823.18

Finding the Fourth Proportional to 3,315.20, 4,574.81 and 1,823.18

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Solution

The fourth proportional to 3,315.20, 4,574.81 and 1,823.18 is: 2,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.20 : 4,574.81 = 1,823.18 : x
  2. Step 2: Convert to fraction form
    3,315.20/4,574.81 = 1,823.18/x
  3. Step 3: Cross multiply
    3,315.20x = 4,574.81 × 1,823.18
  4. Step 4: Simplify right side
    3,315.20x = 8,340,683.78
  5. Step 5: Solve for x
    x = 8,340,683.78/3,315.20
  6. Step 6: Final answer
    x = 2,515.90

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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.