Home / 2,376.76-3,280.08-1,328.89

Finding the Fourth Proportional to 2,376.76, 3,280.08 and 1,328.89

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Solution

The fourth proportional to 2,376.76, 3,280.08 and 1,328.89 is: 1,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.76 : 3,280.08 = 1,328.89 : x
  2. Step 2: Convert to fraction form
    2,376.76/3,280.08 = 1,328.89/x
  3. Step 3: Cross multiply
    2,376.76x = 3,280.08 × 1,328.89
  4. Step 4: Simplify right side
    2,376.76x = 4,358,865.51
  5. Step 5: Solve for x
    x = 4,358,865.51/2,376.76
  6. Step 6: Final answer
    x = 1,833.95

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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.