Home / 1,457.35-2,011.05-1,203.10

Finding the Fourth Proportional to 1,457.35, 2,011.05 and 1,203.10

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Solution

The fourth proportional to 1,457.35, 2,011.05 and 1,203.10 is: 1,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.35 : 2,011.05 = 1,203.10 : x
  2. Step 2: Convert to fraction form
    1,457.35/2,011.05 = 1,203.10/x
  3. Step 3: Cross multiply
    1,457.35x = 2,011.05 × 1,203.10
  4. Step 4: Simplify right side
    1,457.35x = 2,419,489.23
  5. Step 5: Solve for x
    x = 2,419,489.23/1,457.35
  6. Step 6: Final answer
    x = 1,660.20

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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.