Home / 1,636.40-2,258.08-973.42

Finding the Fourth Proportional to 1,636.40, 2,258.08 and 973.42

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Solution

The fourth proportional to 1,636.40, 2,258.08 and 973.42 is: 1,343.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.40 : 2,258.08 = 973.42 : x
  2. Step 2: Convert to fraction form
    1,636.40/2,258.08 = 973.42/x
  3. Step 3: Cross multiply
    1,636.40x = 2,258.08 × 973.42
  4. Step 4: Simplify right side
    1,636.40x = 2,198,052.15
  5. Step 5: Solve for x
    x = 2,198,052.15/1,636.40
  6. Step 6: Final answer
    x = 1,343.22

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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.