Home / 1,635.54-2,256.81-972.42

Finding the Fourth Proportional to 1,635.54, 2,256.81 and 972.42

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Solution

The fourth proportional to 1,635.54, 2,256.81 and 972.42 is: 1,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.54 : 2,256.81 = 972.42 : x
  2. Step 2: Convert to fraction form
    1,635.54/2,256.81 = 972.42/x
  3. Step 3: Cross multiply
    1,635.54x = 2,256.81 × 972.42
  4. Step 4: Simplify right side
    1,635.54x = 2,194,567.18
  5. Step 5: Solve for x
    x = 2,194,567.18/1,635.54
  6. Step 6: Final answer
    x = 1,341.80

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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.