Home / 1,816.25-2,506.79-1,030.45

Finding the Fourth Proportional to 1,816.25, 2,506.79 and 1,030.45

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Solution

The fourth proportional to 1,816.25, 2,506.79 and 1,030.45 is: 1,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.25 : 2,506.79 = 1,030.45 : x
  2. Step 2: Convert to fraction form
    1,816.25/2,506.79 = 1,030.45/x
  3. Step 3: Cross multiply
    1,816.25x = 2,506.79 × 1,030.45
  4. Step 4: Simplify right side
    1,816.25x = 2,583,121.76
  5. Step 5: Solve for x
    x = 2,583,121.76/1,816.25
  6. Step 6: Final answer
    x = 1,422.23

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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.