Home / 1,457.19-2,011.68-1,133.09

Finding the Fourth Proportional to 1,457.19, 2,011.68 and 1,133.09

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Solution

The fourth proportional to 1,457.19, 2,011.68 and 1,133.09 is: 1,564.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.19 : 2,011.68 = 1,133.09 : x
  2. Step 2: Convert to fraction form
    1,457.19/2,011.68 = 1,133.09/x
  3. Step 3: Cross multiply
    1,457.19x = 2,011.68 × 1,133.09
  4. Step 4: Simplify right side
    1,457.19x = 2,279,402.31
  5. Step 5: Solve for x
    x = 2,279,402.31/1,457.19
  6. Step 6: Final answer
    x = 1,564.25

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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.