Home / 1,473.28-2,210.64-742.96

Finding the Fourth Proportional to 1,473.28, 2,210.64 and 742.96

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Solution

The fourth proportional to 1,473.28, 2,210.64 and 742.96 is: 1,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,473.28 : 2,210.64 = 742.96 : x
  2. Step 2: Convert to fraction form
    1,473.28/2,210.64 = 742.96/x
  3. Step 3: Cross multiply
    1,473.28x = 2,210.64 × 742.96
  4. Step 4: Simplify right side
    1,473.28x = 1,642,417.09
  5. Step 5: Solve for x
    x = 1,642,417.09/1,473.28
  6. Step 6: Final answer
    x = 1,114.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.