Home / 1,457.77-2,012.89-1,125.62

Finding the Fourth Proportional to 1,457.77, 2,012.89 and 1,125.62

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Solution

The fourth proportional to 1,457.77, 2,012.89 and 1,125.62 is: 1,554.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.77 : 2,012.89 = 1,125.62 : x
  2. Step 2: Convert to fraction form
    1,457.77/2,012.89 = 1,125.62/x
  3. Step 3: Cross multiply
    1,457.77x = 2,012.89 × 1,125.62
  4. Step 4: Simplify right side
    1,457.77x = 2,265,757.22
  5. Step 5: Solve for x
    x = 2,265,757.22/1,457.77
  6. Step 6: Final answer
    x = 1,554.26

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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.