Home / 3,275.18-4,913.38-1,328.76

Finding the Fourth Proportional to 3,275.18, 4,913.38 and 1,328.76

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Solution

The fourth proportional to 3,275.18, 4,913.38 and 1,328.76 is: 1,993.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,275.18 : 4,913.38 = 1,328.76 : x
  2. Step 2: Convert to fraction form
    3,275.18/4,913.38 = 1,328.76/x
  3. Step 3: Cross multiply
    3,275.18x = 4,913.38 × 1,328.76
  4. Step 4: Simplify right side
    3,275.18x = 6,528,702.81
  5. Step 5: Solve for x
    x = 6,528,702.81/3,275.18
  6. Step 6: Final answer
    x = 1,993.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.