Home / 1,635.26-2,256.30-972.34

Finding the Fourth Proportional to 1,635.26, 2,256.30 and 972.34

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Solution

The fourth proportional to 1,635.26, 2,256.30 and 972.34 is: 1,341.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.26 : 2,256.30 = 972.34 : x
  2. Step 2: Convert to fraction form
    1,635.26/2,256.30 = 972.34/x
  3. Step 3: Cross multiply
    1,635.26x = 2,256.30 × 972.34
  4. Step 4: Simplify right side
    1,635.26x = 2,193,885.10
  5. Step 5: Solve for x
    x = 2,193,885.10/1,635.26
  6. Step 6: Final answer
    x = 1,341.62

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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.