Home / 2,376.84-3,280.04-1,328.91

Finding the Fourth Proportional to 2,376.84, 3,280.04 and 1,328.91

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Solution

The fourth proportional to 2,376.84, 3,280.04 and 1,328.91 is: 1,833.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.84 : 3,280.04 = 1,328.91 : x
  2. Step 2: Convert to fraction form
    2,376.84/3,280.04 = 1,328.91/x
  3. Step 3: Cross multiply
    2,376.84x = 3,280.04 × 1,328.91
  4. Step 4: Simplify right side
    2,376.84x = 4,358,871.47
  5. Step 5: Solve for x
    x = 4,358,871.47/2,376.84
  6. Step 6: Final answer
    x = 1,833.89

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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.