Home / 2,385.16-3,292.98-1,889.80

Finding the Fourth Proportional to 2,385.16, 3,292.98 and 1,889.80

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Solution

The fourth proportional to 2,385.16, 3,292.98 and 1,889.80 is: 2,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.16 : 3,292.98 = 1,889.80 : x
  2. Step 2: Convert to fraction form
    2,385.16/3,292.98 = 1,889.80/x
  3. Step 3: Cross multiply
    2,385.16x = 3,292.98 × 1,889.80
  4. Step 4: Simplify right side
    2,385.16x = 6,223,073.60
  5. Step 5: Solve for x
    x = 6,223,073.60/2,385.16
  6. Step 6: Final answer
    x = 2,609.08

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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.