Home / 1,816.80-2,507.16-1,020.13

Finding the Fourth Proportional to 1,816.80, 2,507.16 and 1,020.13

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Solution

The fourth proportional to 1,816.80, 2,507.16 and 1,020.13 is: 1,407.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.80 : 2,507.16 = 1,020.13 : x
  2. Step 2: Convert to fraction form
    1,816.80/2,507.16 = 1,020.13/x
  3. Step 3: Cross multiply
    1,816.80x = 2,507.16 × 1,020.13
  4. Step 4: Simplify right side
    1,816.80x = 2,557,631.66
  5. Step 5: Solve for x
    x = 2,557,631.66/1,816.80
  6. Step 6: Final answer
    x = 1,407.77

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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.