Home / 1,880.36-2,588.40-1,630.20

Finding the Fourth Proportional to 1,880.36, 2,588.40 and 1,630.20

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Solution

The fourth proportional to 1,880.36, 2,588.40 and 1,630.20 is: 2,244.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.36 : 2,588.40 = 1,630.20 : x
  2. Step 2: Convert to fraction form
    1,880.36/2,588.40 = 1,630.20/x
  3. Step 3: Cross multiply
    1,880.36x = 2,588.40 × 1,630.20
  4. Step 4: Simplify right side
    1,880.36x = 4,219,609.68
  5. Step 5: Solve for x
    x = 4,219,609.68/1,880.36
  6. Step 6: Final answer
    x = 2,244.04

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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.