Home / 2,432.80-3,357.28-1,384.92

Finding the Fourth Proportional to 2,432.80, 3,357.28 and 1,384.92

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Solution

The fourth proportional to 2,432.80, 3,357.28 and 1,384.92 is: 1,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.80 : 3,357.28 = 1,384.92 : x
  2. Step 2: Convert to fraction form
    2,432.80/3,357.28 = 1,384.92/x
  3. Step 3: Cross multiply
    2,432.80x = 3,357.28 × 1,384.92
  4. Step 4: Simplify right side
    2,432.80x = 4,649,564.22
  5. Step 5: Solve for x
    x = 4,649,564.22/2,432.80
  6. Step 6: Final answer
    x = 1,911.20

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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.