Home / 1,635.49-2,256.76-972.10

Finding the Fourth Proportional to 1,635.49, 2,256.76 and 972.10

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Solution

The fourth proportional to 1,635.49, 2,256.76 and 972.10 is: 1,341.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.49 : 2,256.76 = 972.10 : x
  2. Step 2: Convert to fraction form
    1,635.49/2,256.76 = 972.10/x
  3. Step 3: Cross multiply
    1,635.49x = 2,256.76 × 972.10
  4. Step 4: Simplify right side
    1,635.49x = 2,193,793.97
  5. Step 5: Solve for x
    x = 2,193,793.97/1,635.49
  6. Step 6: Final answer
    x = 1,341.37

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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.