Home / 2,328.16-3,212.91-1,280.23

Finding the Fourth Proportional to 2,328.16, 3,212.91 and 1,280.23

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Solution

The fourth proportional to 2,328.16, 3,212.91 and 1,280.23 is: 1,766.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.16 : 3,212.91 = 1,280.23 : x
  2. Step 2: Convert to fraction form
    2,328.16/3,212.91 = 1,280.23/x
  3. Step 3: Cross multiply
    2,328.16x = 3,212.91 × 1,280.23
  4. Step 4: Simplify right side
    2,328.16x = 4,113,263.77
  5. Step 5: Solve for x
    x = 4,113,263.77/2,328.16
  6. Step 6: Final answer
    x = 1,766.74

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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.